In a research study, if one variable is changed to see how it affects behavior, the study is most likely an experiment.
What exactly is the research study?A scientific investigation of the natural world, occasionally encompassing physiological and pathological mechanisms. Clinical trials are an illustration of a research study involving people.
The majority of research studies are published in scholarly (peer-reviewed) journals. These kinds of headings are frequently found in articles: literature review, method, results, discussion, and conclusion. research studies do not include articles that summarize prior research without presenting new findings.
The study is experimental because one variable is under the control of the researchers to see how it affects the response variable. Analyze the study to see if it is an experiment or an observational study.
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Answer:
B
Explanation:
Viruses that infect animals tend to be enveloped viruses. Identify the answer choice that best describes the structure of these
viruses
O a nucleic acid genome surrounded by an outer protein coat called a capsid
O a capsid core surrounded by a lipid membrane with nucleic acid genome spikes
O a nucleic acid genome surrounded by a capsid encased in a lipid membrane
a nucleic acid genome surrounded by a lipid membrane inside a capsid
The structure of these viruses a nucleic acid genome surrounded by a capsid encased in a lipid membrane.
What is viruses?A virus is a small infectious agent that replicates only inside the living cells of other organisms. Viruses can infect all types of life forms, from animals and plants to microorganisms, including bacteria and archaea. Most viruses have a simple structure consisting of genetic material, a protein coat and, in some cases, an envelope of lipids. They are typically between 20 and 300 nanometers in size, although some are much larger. Viruses are not considered to be living organisms because they lack the key characteristics of life, such as a metabolism and the ability to reproduce on their own. Instead, they rely on the host to provide the necessary materials for replication.
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Which of the following statements describes how mammals contribute to the carbon and oxygen cycles?
Mammals use
a
cellular respiration to absorb oxygen and carbon dioxide.
b
cellular respiration to take in oxygen and release carbon dioxide.
c
photosynthesis to absorb carbon dioxide and take in oxygen.
d
photosynthesis to take in oxygen and release carbon dioxide.
please help asap
Mammals use B. cellular respiration to take in oxygen and release carbon dioxide while plants use photosynthesis.
if a researcher determines that his/her study poses no more than minimal risk as defined in 45 cfr 46, there is no need for the protocol to have irb review and approval. true or false
False.
If a researcher determines that their study poses no more than minimal risk as defined in 45 CFR 46, it is still necessary for the protocol to undergo review and approval by an institutional review board (IRB). The IRB is responsible for ensuring that the rights and welfare of human subjects are protected in research studies. Even if a study poses minimal risk to participants, it is important for the IRB to review the study protocol to ensure that it is ethically sound and that any potential risks are adequately minimized.
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Which of the following are examples of GOOD evidence statements for this CER? (Select ALL correct answers)
Which of the following are examples of GOOD evidence statements for this CER? (Select ALL correct answers)
The lowest average temperature recorded was 82°F
Yusuh should paint their dog house white.
White has the lowest average temperature and black has the highest this is because the Sun warms up black paint more than white paint.
Yusuh tested each color three times, so his data is good.
Yusuh should definitely not paint his dog house black.
The white board's temperature never went above the lowest temperature of any other board.
The option that serves as the examples of GOOD evidence statements for this CER are options A, C, D and F:
The lowest average temperature recorded was 82°FWhite has the lowest average temperature and black has the highest this is because the Sun warms up black paint more than white paint.Yusuh tested each color three times, so his data is good.The white board's temperature never went above the lowest temperature of any other board.What is the GOOD evidence statements?The first statement, "The lowest average temperature recorded was 82°F," offers proof on the temperatures of the various painted boards. Because the Sun warms up black paint more than white paint, the second statement, "White has the lowest average temperature and black has the highest," explains why the different hues of paint had varied temperatures.
The final statement, "Yusuh tested each color three times, hence his data is good," therefore, implies that Yusuh's data is trustworthy because he carried out numerous experiments. The fourth assertion, which reads, "The white board's temperature never climbed over the lowest temperature of any other board," adds more support for the idea that white paint offered the best temperature control.
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Explain each of these issues that were raised during the modern environment era
Carcinogenic material-
Air pollution-
Persistent chemicals -
Extinction -
Famine -
Water pollution -
Hazardous waste -
Answer:
Carcinogenic material refers to substances that are capable of causing cancer in living tissue. This has become an issue during the modern environmental era due to the increased use of chemicals and other substances in industry and agriculture that may have carcinogenic properties.
Air pollution is a major concern in the modern environment era, as it can have significant negative impacts on human health, the environment, and the economy. Air pollution is caused by the release of various pollutants, such as particulates, gases, and chemicals, into the atmosphere.
Persistent chemicals are chemicals that remain in the environment for long periods of time and can accumulate in living organisms. These chemicals can have harmful effects on human health and the environment, and they have become an issue of concern in the modern environmental era.
Extinction refers to the disappearance of a species or population of organisms from the earth. This has become a major issue in the modern environmental era due to the impact of human activities on the natural world, such as habitat destruction, pollution, and climate change.
Famine is a widespread and severe food shortage that can have serious consequences for human health and well-being. This has become an issue in the modern environment era due to factors such as climate change, population growth, and resource depletion.
Water pollution is a major concern in the modern environmental era, as it can have serious impacts on human health, the environment, and the economy. Water pollution is caused by the release of various pollutants, such as chemicals, pathogens, and nutrients, into bodies of water.
Hazardous waste is any material that is dangerous or potentially harmful to human health or the environment. The proper disposal of hazardous waste has become an issue of concern in the modern environmental era due to the potential impacts of these materials on human health and the environment.
Explanation:
Explain how two different species of birds are able to live in the same area and nest in the same tree
Answer:
There are several ways in which two different species of birds can live in the same area and nest in the same tree:
Niche differentiation: The two species may occupy different niches within the ecosystem, meaning they have different roles and use different resources. This can allow them to coexist in the same area without competing directly for the same resources.
Temporal separation: The two species may use the same nesting sites at different times of the year. For example, one species may nest in the spring while the other nests in the fall, so they do not overlap.
Spatial separation: The two species may nest in different parts of the tree or use different types of nesting sites. For example, one species may nest in cavities while the other builds nests in branches.
Behavioral differences: The two species may have different behaviors that allow them to coexist peacefully. For example, one species may be more aggressive and dominant, while the other is more submissive and avoids conflicts.
Overall, the ability of two different species of birds to live in the same area and nest in the same tree is often due to a combination of these factors.
Please help need answer quick
Changes in the hydrosphere affect the biosphere because the hydrosphere is a part of the biosphere in a similar manner to the geosphere and also the atmosphere, which are mutually related in order to form the biosphere and ecosystems in particular regions of the earth.
What is the biosphere level of the earth's planet?The biosphere level of the earth planet makes reference to the overall combination of minor parts of the ecosystems which are known as the geosphere (soil and terrestrial environments), the hydrosphere (water and aquatic environments) and the atmosphere (air level), which are related in a delicate equilibrium to reach the homeostasis of the ecosystems.
Therefore, with this data, we can see that the biosphere level of the earth's planet is formed by all minor parts of such global ecosystem which are known as the geosphere, hydrosphere, and also the geosphere.
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Which of the following falls under the responsibility of the land disposal
restrictions (LDR) program?
1. Keeping hazardous wastes out of landfills
II. Maintaining the structural integrity of landfill liners
III. Outlining acceptable disposal methods for hazardous wastes
A. II and III only
B. I, II, and III
C. I and III only
D. III only
B. I, II, and III
The land disposal restrictions (LDR) program is a program designed to protect human health and the environment by reducing the amount of hazardous waste that is disposed of in landfills.
The program is administered by the Environmental Protection Agency (EPA) in the United States, and it is designed to ensure that hazardous wastes are managed in a responsible and safe manner.
As part of the LDR program, the EPA is responsible for keeping hazardous wastes out of landfills, maintaining the structural integrity of landfill liners, and outlining acceptable disposal methods for hazardous wastes. All three of these responsibilities fall under the purview of the LDR program.
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List one strength and one weakness of epidemiology.
Epidemiology sheds light on the origins and course of disease and can offer proof to assist in disease prevention. It encourages the use of successful medical interventions to treat or lengthen the lives of persons who are ill.
The accuracy of diagnoses or causes of death listed on death certificates, population estimates, emigration from research areas, and the "ecological fallacy" problem are all explored. Retrospective studies have issues with survivor bias, selection bias, and recollection of prior environmental exposure.
What advantages can an epidemiological study offer?Epidemiologic studies can be used for a variety of purposes, but they are most frequently employed to determine the prevalence of a disease and identify relationships that may point to its causes. Measures of disease (incidence) or death (mortality) are taken within demographic groups to help attain these objectives.
The three main methods used in epidemiology are experimental, analytical, and descriptive. Even though all three can be used to look into the spread of disease, descriptive epidemiology is the approach that is most frequently applied.
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The healthcare provider prescribes a continuous feeding of half strength Osmolite 240 ml to be infused every 4 hours for a client with a gastrostomy tube (GT). The nurse should program the enteral pump to deliver how many ml/hour? (Enter numeric value only).
In order to program the enteral pump to deliver the appropriate amount of nutrition, the nurse must program the pump to deliver 60 ml/hour.
The process of programming the pump to deliver the medication is relatively straightforward. First, the nurse must ensure the pump is properly set up. This includes checking the tubing and the pump to ensure they are free of any obstructions. The nurse must then check that the pump is calibrated correctly and that the settings are appropriate for the prescribed medication. Once this is complete, the nurse can program the pump to deliver 60 ml/hour.
The healthcare provider has prescribed a continuous feeding of half strength Osmolite 240 ml to be infused every 4 hours for a client with a gastrostomy tube (GT).
It is important for nurses to understand the implications of programming the pump for this client. A continuous feeding of half strength Osmolite requires a continuous, slow infusion of the medication. The nurse must ensure that the pump is programmed correctly, as too much or too little of the medication could lead to adverse effects. If the infusion is too fast, the client could experience a rapid increase in blood glucose, which could cause hyperglycemia.
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In which region of the flower are sperm cells produced?
The anthers, which are located in the stamen of the flower.
The anthers contain the male reproductive cells, known as pollen grains. Each pollen grain contains two sperm cells. When the pollen grain is released from the anther, the sperm cells are released and can then fertilize the female reproductive cells, which are located in the ovary of the flower.
In the 1930s, the Navajo Nation treated sheep and cattle for ticks and other parasites by using concrete "dip tanks," a common practice in the United States during that time period. Animals were herded into one end of the tank and out the other. Each day, the tanks were filled with 200,000 gallons of insecticide, and any remaining chemicals were emptied onto the ground. The pesticide solution seeped into the ground, ditches, and pits around the tanks.
In the 1990s, the EPA Emergency Response Team (ERT) was called to the Navajo Nation to investigate the problem. They concluded that bioremediation procedures were the best option for cleaning up the site. Certain types of bacteria are able to feed on and digest toxic organic substances, such as pesticides, and use them as fuel for cell respiration. The ERT distributed these pesticide-eating microorganisms throughout the contaminated soil to remove the chemical residues. Once the contaminants are degraded, these microorganism populations will die off because they will have used up all of their food supply.
The bacteria used in this bioremediation procedure are ________.
The bacteria used in this bioremediation procedure are chemoheterotrophs.
Organisms that are chemoheterotrophic are unable to produce any organic materials or nourishment on their own. Their primary sources of energy and carbon are organic chemical molecules. Theoretically, humans may act as chemoheterotrophs. When an organism has to devour other living things in order to survive and also gets its energy from chemicals, it is referred to as a "chemoheterotroph." This implies that in order to exist, you must eat other living things, such as plants and animals, as food supplies all of your body's energy. Chemoautotrophs convert carbon dioxide into organic molecules using inorganic energy sources. Carbon dioxide cannot be used by chemoheterotrophs to produce their own organic molecules.
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Which of these is not a challenge for respiration in water? question 3 options: the density of water is very high relative to air. water holds approximately 30 times less oxygen when compared to air. water requires an additional energy expenditure to move across epithelial surfaces. water moving across respiratory surfaces removes heat from the animal. water breathing animals have a high risk of desiccation.
Water breathing animals do not face a challenge for respiration in water because they have evolved ways to optimize oxygen uptake from the water they inhabit.
These animals have adapted specialized gills that contain a large surface area which enables them to efficiently absorb oxygen from the water. They also have an increased number of blood vessels in their gills which increases the oxygen uptake from the surrounding water.
Additionally, the blood vessels in their gills contain counter current exchange systems that enable them to extract more oxygen from the water. This adaptation allows these animals to extract more oxygen from the water than would otherwise be available in the surrounding environment.
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Which of the following is the BEST claim to answer this question?
Which of the following is the BEST claim to answer this question?
Yusuh should paint their dog house White. The reason is that the data showed it had the lowest average temperature.
The warmest temperature Yusuh recorded was 94 °F
Yusuh should paint their dog house white because the average temperatures are 93, 88, 85. 82 °F. Since 82°F is the lowest that means that it is the best. Black would be the worst.
Yusuh should paint their dog house White.
I think that White is the best choice.
The statement that is the BEST claim to answer this question is option C. Yusuh should paint their dog house white because the average temperatures are 93, 88, 85. 82 °F. Since 82°F is the lowest that means that it is the best. Black would be the worst.
Why is the statement has the best claim?The third claim is the best claim to answer the question because it provides specific data and explains why white is the best color for the dog house based on the average temperatures recorded.
The first claim does not provide any data or explanation for why white is the best color for the dog house. The second claim provides temperature data, but does not explain how it relates to the best color for the dog house. The fourth claim simply states that Yusuh should paint their dog house white without any justification or explanation.
Therefore, the correct answer is as given above
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Problem: Within a population of butterflies, the color brown (B) is dominant over the color white (b). 40% of the butterflies are white. Given this information, choose the correct answers that will properly identify the values for dominant and recessive alleles and genotypes of the population.
What is the value for the dominate allele of the example above?
Question 1 options:
0.04
0.60
0.8
80%
Question 2
Within a population of butterflies, the color brown (B) is dominant over the color white (b). 40% of the butterflies are white. Given this information, choose the correct answers that will properly identify the values for dominant and recessive alleles and genotypes of the population.
What is the value for the recessive allele of the above example?
Question 2 options:
0.60
0.8
0.40
80%
Question 3
Within a population of butterflies, the color brown (B) is dominant over the color white (b). 40% of the butterflies are white. Given this information, choose the correct answers that will properly identify the values for dominant and recessive alleles and genotypes of the population.
Using the H-W equation; if the 2pq value of the butterflies was 0.48, what does this indicate?
Question 3 options:
Heterozygous individuals
Homozygous individuals
Dominant alleles only
More information is needed
Question 4
Within a population of butterflies, the color brown (B) is dominant over the color white (b). 40% of the butterflies are white. Given this information, choose the correct answers that will properly identify the values for dominant and recessive alleles and genotypes of the population.
Using your H-W equation, calculate the following. The value of q is 0.28; what is the value of p2?
Question 4 options:
0.52
0.32
0.72
0.08
Question 5
Within a population of butterflies, the color brown (B) is dominant over the color white (b). 40% of the butterflies are white. Given this information, choose the correct answers that will properly identify the values for dominant and recessive alleles and genotypes of the population.
What does the above information tell us about the answer of p = 0.72?
Question 5 options:
Homozygous recessive individuals are more common
Heterozygous individuals are more common
Both the dominant and recessive alleles are equally dispersed in this population
Homozygous dominant individuals are more common
Question 6
Heterozygous individuals will display the dominant trait but carry the recessive allele that can be passed to future offspring.
Question 6 options:
True
False
Answer:
0.60
Explanation:
Determine if the equations represent synthesis reaction, decomposition reaction, single displacement reaction, or double displacement reactions .
The reaction of calcium sulfate is double displacement reaction, the reaction of copper and oxygen is synthesis reaction. The reaction of copper oxide and oxygen is single displacement reaction.
What is chemical reaction?When atoms establish or break chemical bonds, chemical processes take place. Reactants are the substances that begin a chemical reaction, while products are the compounds that are created as a result of the reaction.
Combination, decomposition, single-replacement, double-replacement, and combustion are the five fundamental types of chemical reactions. You can classify a reaction into one of these groups by looking at the reactants and products.
Calcium sulphate undergoes a double displacement reaction, whereas copper and oxygen undergo a synthesis reaction. Copper oxide and carbon is single displacement reaction.
Thus, first is double displacement reaction, second is synthesis reaction, as well as third reaction is single displacement reaction.
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In humans, wavy hair occurs in heterozygotes (HSH) offspring of people with straight hair (HSHS) and curly hair (HCHC). Which of the following crosses would produce offspring with the ratio of 1 straight:2 wavy:1 curly? straight x straight wavy x wavy curly x wavy curly x curly
Curly x Wavy is the right answer for the given question for the wavy hair occurs in the heterozygotes offspring of people with straight hair.
HSH offspring are individuals who have inherited one genetic variant (or allele) from each parent for a particular trait. This type of offspring is often referred to as heterozygous and can occur when the parents are both heterozygous or when one parent is homozygous and the other is heterozygous for a particular trait. In some instances, accurate heterozygote identification can be achieved with readily available tissues such as serum, circulating blood cells, buccal epithelial cells, or tears. In other cases, optimal carrier detection may require cultured skin fibroblasts or even biopsied liver or muscle tissue.
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The correct response to the question is Curly x Wavy because heterozygotes, or children of persons with straight hair, often have wavy hair.
HSH kids are people who have inherited one genetic variation (or allele) for a specific trait from each parent. When both parents are heterozygous for a certain trait or when one parent is homozygous and the other is heterozygous, this sort of offspring—often referred to as heterozygous—occurs.
In some cases, readily accessible tissues like serum, circulating blood cells, buccal epithelial cells, or tears can be used to accurately identify heterozygotes. In other instances, cultured skin fibro-blasts or even liver or muscle tissue biopsy may be necessary for the best carrier diagnosis.
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1 Choose THREE human activities that have a negative impact on the biodiversity within Amazon rainforests.
A
captive breeding of organisms
B
change in the land-use pattern
C
exploitation of available resources
D
introduction of conservative measures
E
introduction of invasive species
F
restoration of degraded land
The three human activities that have a negative impact on the biodiversity within Amazon rainforests are captive breeding of organisms, introduction of invasive species and restoration of degraded land.
What threats are there to biodiversity in the Amazon rainforest?The unique biodiversity of the Amazon rain forest has been threatened by deforestation caused by clear-cutting forests for hardwood timber, and to provide pastureland for cattle and crop farms.
Biodiversity loss from habitat destruction is often driven by land grabbing and industrialized agricultural expansion, mining, logging, and large-scale infrastructure development, usually through deforestation.
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In the sycon sponge body form, choanocytes line the
a. spongocoel.
b. gastrovascular cavity.
c. radial canals.
d. incurrent canals.
Answer:
c. radial canals.
Explanation:
In the sycon sponge body form, choanocytes line the radial canals.
True False Question 2 (8 points) Joe, a previous student in this course, has posted a quiz from the class to a third- party website that buys and sells coursework. This act is considered academic dishonesty.
False I hope that helps you out
insects are a spectacular example of animal diversity and belong to the _____, the most successful animal phylum in terms of species diversity, geographic distribution, and sheer numbers.
insects are a spectacular illustration of beast diversity and belong to the Arthropoda
the most successful beast phylum in terms of species diversity, geographic distribution, and sheer figures. Arthropods are brute creatures with an exoskeleton, a segmented body, and paired concerted accessories . Arthropods form the phylum Arthropoda. They're distinguished by their concerted branches and cuticle mama They're distinguished by their concerted branches and cuticle made of chitin, frequently mineralised with calcium carbonate. The arthropod body plan consists of parts, each with a brace of accessories . Arthropods are bilaterally symmetrical and their body possesses an external shell.
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Insects, which are members of the Arthropoda order, are a magnificent example of animal diversity.
In terms of species diversity, geographic spread, and sheer numbers, the most prosperous phylum of beasts. Arthropods are ungainly organisms having a segmented body, an exoskeleton, and paired coordinated accoutrements.
The phylum Arthropoda is made up of arthropods. Their coordinated branches and cuticle mother serve as distinguishing features. Their coordinated branches and cuticle, which is formed of chitin and frequently mineralized with calcium carbonate, set them apart. Each component of an arthropod's body design has a set of accessories. Arthropods have an exterior shell on their bodies and are bilaterally symmetrical.
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Explain how 1) fossil evidence 2) comparative anatomy 3) molecular biology (genes &
proteins) and 4) evidence from quickly evolving organisms support the occurrence of
evolution.
Fossil records are supported by other evidence in which comparative anatomy compares the structures of organisms of both fossils and living species.
What is evidence that supports the evolution of organisms?Comparative anatomy states the comparisons of anatomical features in various organisms often provide evidence that supports the theory of evolution.
In molecular biology DNA of different organisms compares the nucleotide sequence, which supports, how an organism is evolve from other. Evidence of quickly evolving organisms makes it easier to find the evolution of an organism.
Therefore, fossil records, comparative anatomy, and molecular biology provide the basis of evolution.
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2 Explain how Pasteur made sure that any micro-organisms that appeared in the
flask had food and oxygen.
Pasteur based his experimental design on a number of observations. He knew that bacteria grow in open containers of meat broth. ... In both, Pasteur added nutrient broth to flasks, bent the necks of the flasks into S shapes, and then boiled the broth to kill any existing microbes.
Explanation:
The table below compares the energy requirements of three display technologies for e-reader devices.
Based on the table, IMOD technology is
You may use the calculator.
Type your answer in the box.
Energy Use Comparison in E-Reader Display Technology
liquid crystal
display (LCD)
color
10 hours
interferometric
modulator display (IMOD)
color
Technology electronic ink
Appearance black and white
Average
Battery Life
40 days
times more energy efficient than LCD technology.
5 days
Based on the table, IMOD technology is 50 times more energy efficient than LCD technology.
What is LCD technology?A type of flat panel display known as an LCD (Liquid Crystal Display) operates primarily using liquid crystals. Since they are frequently used in cellphones, televisions, computers, and instrument panels, LEDs offer a wide range of applications for consumers and enterprises.
Many weak or stuck pixels that are always on or off can be found in LCDs. It's possible for some pixels to be incorrectly connected to adjacent pixels, rows, or columns.
Therefore, IMOD technology is 50 times more energy efficient than LCD technology, according to the table.
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In DNA replication, which of the following events happen during leading strand synthesis but not during lagging strand synthesis?
a. DNA primer helps to initiate DNA synthesis
b. DNA polymerase synthesizes a single, continuous strand of DNA
c. Ligase joins discontinuously synthesized DNA fragments
d. Helicase helps to relax supercoiled DNA upstream of replication fork
Answer: d. Helicase helps to relax supercoiled DNA upstream of replication fork
Explanation: I am not sure but i think it is right
how you can avoid spreading invasive plant species?
Answer:here is a couple of answers for u
Explanation:
Clean your hiking and fishing gear. ... Don't move firewood. ... Fish using native bait when possible. ... Volunteer at removal efforts. ... Talk to your local nursery when selecting plants for your garden. ... Clean your boat before transferring to a new body of water.
Hope it helps!
select all that apply: which of the following are true for the hops plant used in beer making? check all that apply hops are added in the fermentation step. hops are added in the fermentation step. hops are added in the malting step. hops are added in the malting step. hops are added in the mashing step hops are added in the mashing step hops are the flowers of the hops plant. hops are the flowers of the hops plant. hops are the stems of the hops plant. hops are the stems of the hops plant. hops are the fruit of the hops plant. hops are the fruit of the hops plant. hops add bitterness to the final product. hops add bitterness to the final product. hops add sweetness to the final product. hops add sweetness to the final product. hops can easily get contaminated with bacteria. hops can easily get contaminated with bacteria. hops function as an antibacterial.
Hops are added in the mashing step
Hops are the flowers of the hops plant.
Hops add bitterness to the final product.
Hops can easily get contaminated with bacteria.
Hops function as an antibacterial.
Hops are not added in the fermentation or malting step, they are mostly added during the boiling of the wort after mashing and lautering steps. Hops are the flower of the plant and not the stems or fruit. The main contribution of hops in beer making is bitterness they add to the final product, they also contribute to the aroma and flavor but not sweetness. Also, hops are susceptible to bacterial contamination, but they do have natural compounds that act as an antibacterial.
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Hops are added in the boiling step. hops are the flowers of the hops plant. hops add bitterness to the final product are some of statements true for the hops plant used in beer making.
Hops can become contaminated with bacteria if they are not handled and stored properly. However, hops also have some antibacterial properties In brewing beer, hops are added during the boiling step to infuse their flavors and aromas into the wort (the sugar-rich liquid extracted from the mashing process).
Hops are the flowers of the humulus lupulus plant, and they contain compounds called alpha acids and essential oils that contribute to the characteristic bitterness and aromas of beer. In addition to adding bitterness, hops can also contribute other flavors and aromas to beer, such as citrus, pine, and fruit notes.
Hops are not added during the fermentation, malting, or mashing steps. Fermentation is the process by which yeast converts the sugars in the wort into alcohol, and it typically takes place after the boiling step. Hops do not add sweetness to the final product. They contribute bitterness and aromas, but the sweetness in beer comes from the sugars that are fermented by the yeast.
Hops can potentially become contaminated with bacteria if they are not handled and stored properly. However, hops also have some antibacterial properties due to their high levels of alpha acids and essential oils, which can help to preserve the finished beer and prevent spoilage.
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If you saw a photograph of a fish that can make it’s own light, what could you infer about where fish lives?
Answer:
it lives In a dark location
Which of the following statements describes the major reason that an individual with the genotype AaBbCCDdEE can make many kinds of gametes?
A) segregation of maternal and paternal alleles
B) crossing over during prophase I
C) different possible assortment of chromosomes into gametes
D) the tendency for dominant alleles to segregate together
The statement describes the major reason that an individual with the genotype AaBbCCDdEE can make many kinds of gametes a different possible assortment of chromosomes into gametes.
Thus, the correct answer is C.
Mendel's lаw of independent аssortment stаtes thаt the аlleles of two (or more) different genes get sorted into gаmetes independently of one аnother. In other words, the аllele а gаmete receives for one gene does not influence the аllele received for аnother gene.
Genotype is the genetic mаkeup (such аs Аа), whereаs phenotype is the expression of the genotype interаcting with its environment (such аs brown versus blаck fur). Different genes code for totаlly different protein products, whereаs аlleles аre the different forms thаt а specific gene cаn hаve.
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What are the advantages and disadvantages to a plant species that is pollinated by only one type of pollinator?
Answer:
There are both advantages and disadvantages to a plant species that is pollinated by only one type of pollinator.
Some advantages include:
Increased efficiency: If a plant is specialized to be pollinated by one type of pollinator, it can evolve to be more attractive and efficient at attracting that specific pollinator. This can lead to more successful pollination and higher reproductive success for the plant.
Specialized relationships: Plants that are pollinated by a specific type of pollinator may have a more specialized relationship with that pollinator, which can lead to a more stable and reliable pollination process.
Some disadvantages include:
Vulnerability: If the plant is dependent on only one type of pollinator, it may be more vulnerable to changes in the population or availability of that pollinator. For example, if the pollinator becomes scarce or goes extinct, the plant may also be at risk.
Limited dispersal: If a plant is only pollinated by one type of pollinator, it may be limited in its ability to disperse seeds to new areas. This can limit the plant's potential range and ability to adapt to new environments.
Decreased genetic diversity: If a plant is only pollinated by one type of pollinator, it may have lower genetic diversity within its population compared to plants that are pollinated by multiple types of pollinators. This can make the plant more susceptible to disease and other threats.
