The answer is Option D,It will make the ecosystem less stable, because predators will lose a major source of food.
What is Keystone Species?The naturalist Robert T. Paine first proposed the idea of a "keystone species" in 1969. A keystone species is a species that, in relation to its abundance, has an outsized impact on its natural habitat. By influencing many other organisms in an environment and assisting in determining the types and numbers of different other species in the community, keystone species serve a crucial role in sustaining the structure of an ecological community. Without keystone species, the ecosystem would either no longer exist or would change significantly. Apex predators include some keystone species, like the wolf.
A keystone species plays a important role in maintaining ecosystem and keystone species may be top predator so, the removal of it will affect the ecosystem but not producers , decomposers or consumers. By controlling the size of their prey populations, predators avoid resource overuse. Predation eliminates unhealthy and inactive people since they are more vulnerable to it than healthy people. Additionally, it prevents its species from dominating the environment and from reaching its carrying capacity, allowing for the coexistence of other prey species. As a result, species diversity rises and competition exclusion declines.To know more about Keystone Species,Refer to:
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Which of the following statements is NOT true? a. Mitosis results in two diploid cells, while meiosis results in four haploid cells. b. Daughter cells are identical after mitosis, but are not identical after meiosis c. Mitosis creates two daughter cells, while meiosis creates four daughter cells d. Daughter cells are diploid after one round of mitosis, and diploid after one round of meiosis
Answer:
search sailesh xettri on messenger
Explanation:
bike pic guy
- Think back to the picture of storage devices and your answer to the question from page 5 "How is your
unique DNA similar to these storage devices?" Revise your answer using evidence from the lesson.
Digital storage systems encode text, photos, or any other kind of information as a series of 0s and 1s. This same information can be encoded in DNA using the four nucleotides that make up the genetic code: A, T, G, and C.
What are the functions of DNA?
Deoxyribonucleic acid is the molecule that carries genetic information for the development and functioning of an organism. DNA is made of two linked strands that wind around each other to resemble a twisted ladder — a shape known as a double helix.
DNA now has three distinct functions—genetics, immunological, and structural—that are widely disparate and variously dependent on the sugar phosphate backbone and the bases.
DNA contains the instructions needed for an organism to develop, survive and reproduce. To carry out these functions, DNA sequences must be converted into messages that can be used to produce proteins.
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Assignment
-Explain the mechanism of water
Ascent in plant
The mechanism of water ascent in plants is through the process of transpiration.
What is transpiration?Transpiration is the process by which water is evaporated from plants, mainly from their leaves. It occurs when the plant takes in water from the soil through its roots and releases it into the air as water vapor through tiny pores called stomata, which are mainly found on the undersides of leaves.
This process helps plants to cool themselves and to maintain the water balance in their tissues. It is also an important part of the water cycle, as the water vapor released through transpiration eventually returns to the atmosphere and can later be precipitated back to the ground as rain or snow.
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All of an organism's characteristics are traits that evolved over millions of years. An example of this is the modern-day horse's foot.
What is the process of evolution in the traits of an organism?The process of evolution in the traits of an organism makes reference to the change of the part of an organism to adapt to certain environmental conditions.
Therefore, with this data, we can see that the process of evolution in the traits of an organism is based on the change of traits to fit with the environmental conditions.
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8) Using the table and information, choose the correct answer. A student notices that he does better on tests if he sleeps for at least 8 hours. He decides that for the next 3 tests he has in science class, he will sleep different amounts of times and see how he does on his tests. For his next science test, he sleeps only 4 hours the night before, 6 hours before the next test, and 8 hours before the final exam. The chart shows his data.Test Hours of Sleep Grade
1 4 56
2 6 75
3 8 80
In the description, the independent variable is the hours of sleep.
What are the variables in the experiment?The experiment would have to deal with about two variables and these are the;
Independent variableDependent variableWe do manipulate the independent variable and such the value of the independent variable would change often in the process.
As such, the student is varying his/her hours of sleep and observing its effect on test performance.
We can now see that the independent variable that we are dealing with is the hours of sleep.
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Missing parts;
Using the table and information, choose the correct answer. A student notices that he does better on tests if he sleeps for at least 8 hours. He decides that for the next 3 tests he has in science class, he will sleep different amounts of times and see how he does on his tests. For his next science test, he sleeps only 4 hours the night before, 6 hours before the next test, and 8 hours before the final exam. The chart shows his data. Test Hours of Sleep Grade 1 4 56 2 6 75 3 8 80 What is the independent variable? grade hours of sleep science test
Can you do this exercise for me, it is really urgent:
SITUATION
Stephen drinks alcohol every day. He has an addiction to alcohol but doesn't realize it. Although his friend Mehdi has pointed it out to him several times, Stephen says he can stop whenever he wants. Recently, Stephen had an accident at work due to a careless mistake after drinking. He decides to react and to go and see an addictologist.
Answer:
(I am not fluent in French, but here is what I interpreted) The problem is alcohol usage
Explanation:
The problem is his excessive use of alcohol causing a mistake at work
His friend Mehdi is concerned
It doesn't state when the addiction started and only that the mistake at work happened recently
Stephen is now seeing an addictilogist
The problem is getting worse because he wouldn't acknowledge that he had a problem
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If most animals are derived from a single ancestral stock, and if that ancestral stock was radially symmetrical, would the colonial hypothesis or the coenocytial hypothesis of animal origins be more attractive to you? Explain
The colonial hypothesis of animal origins would be more attractive because the colonial hypothesis posits that animals evolved from colonial protists.
What is colonial hypothesis?The colonial hypothesis is a theory of animal evolution that proposes that animals evolved from colonial protists. A colonial protist is an organism made up of a group of genetically identical cells that function as a single unit. The cells in a colonial protist are held together by a common extracellular matrix and are able to divide and differentiate in order to perform different functions. According to the colonial hypothesis, animals evolved from colonial protists through a process of specialization and integration of cells.
The cells in the colonial protist became specialized for different functions and became more integrated with one another, eventually giving rise to the complex multicellular animals we see today. The colonial hypothesis is one of several theories that have been proposed to explain the evolution of animals, but it is not widely accepted by the scientific community.
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Are there any parts of the human body that get oxygen directly from the air and not from the blood?
A method used to safely reduce the amount of corticosteroids drugs used is called:Rapid withdrawal
Tapering
Titration
Loading
A method used to safely reduce the amount of corticosteroids drugs used is called Tapering. The correct option is B.
What is Tapering procedure?Tapering is the process of gradually reducing the dosage of the medication over time.
Over time, this procedure helps the body become used to not having the drug, which lessens the intensity of cravings and withdrawal symptoms.
The process of gradually reducing the dosage of an addictive chemical over time is known as tapering.
Tapering can help the body gradually acclimatise to sobriety and help patients find relief from many severe withdrawal symptoms when it is done under the guidance of skilled medical specialists.
Thus, the correct option is B.
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Everyone should set personal goals that can be applied towards self-improvement. Write two paragraphs describing your goals for improving your health, and fitness. Also include a plan as to how you will accomplish these two goals. Write in complete sentences and with correct grammar and spelling.
One of my personal goals for improving my health and fitness is to incorporate more physical activity into my daily routine.
To accomplish this goal, I plan on joining a gym and attending at least three exercise classes per week. I will also make an effort to go for a walk or run outdoors on the days that I do not go to the gym.Another goal that I have is to eat a healthier diet. To achieve this, I plan on meal prepping on the weekends and packing healthy lunches and snacks to bring with me to work. I will also try to incorporate more fruits and vegetables into my meals and limit my intake of processed and sugary foods.What is the personal goals about?For the goal of incorporating more physical activity into my daily routine, I am planning to join a gym that offers a variety of exercise classes, such as yoga, Pilates, and spin.
This will allow me to mix up my workouts and try different types of physical activity to see what I enjoy the most. I will also make sure to warm up properly before each workout and stretch afterwards to prevent injury.
Therefore, For the goal of eating a healthier diet, I plan on meal prepping on the weekends by preparing a variety of healthy meals and snacks that I can bring with me to work throughout the week.
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variations in sewage sludge phosphorus speciation in three wastewater treatment plants: determined by sequential extraction in combination with microscopy, nmr spectroscopy, and powder x-ray diffraction.
who wrote this article?
Controlling the practical applications and environmental behaviour of sewage sludge and the biochar that is produced from it depends on the characterization of P speciation.
Sewage sludge is a byproduct of municipal wastewater treatment procedures that cannot be avoided, and turning it into high-value biochar is a good way to make use of this resource. Controlling the practical applications and environmental behavior of sewage sludge and the biochar that is produced from it depends on the characterization of P phosphorus speciation. The mobility and bioavailability of P phosphorus are directly related to its speciation, however there is still a knowledge vacuum in P phosphorus speciation that has to be filled by a thorough investigation using both theoretical prediction and currently available experimental methodologies and techniques.
This study combined conventional P fractionation with consideration of the main concomitant elements (Al, Ca, and Fe), advanced analytical techniques (solution and solid-state 31P NMR, X-ray diffraction (XRD), and theoretical simulation with respect to the solubility of the major elements in various acid-base extractants, in order to achieve a comprehensive understanding of P speciation.
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The characterisation of P speciation is crucial for managing the practical applications and environmental behavior of sewage sludge .
Sewage sludge is an unavoidable byproduct of municipal wastewater treatment processes, and using this resource to generate high-value biochar is an excellent idea. The characterisation of P phosphorus speciation is crucial for managing the practical applications and environmental behavior of sewage sludge and the biochar that is made from it. Although the speciation of P phosphorus is closely related to its mobility and bioavailability, there is still a knowledge gap in this area.
In order to gain a thorough understanding of P speciation, this study combined traditional P fractionation with consideration of the main concomitant elements (Al, Ca, and Fe), advanced analytical techniques (solution and solid-state 31P NMR, X-ray diffraction (XRD), and theoretical simulation with respect to the solubility of the major elements in different acid-base extractants.
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this sponge body is:( which one)?
-Ascon
-Sycon
-Leucon
Explain
Answer:
Sycon
Explanation:
due to its shape and the parts within
ascon has nothing within
leucon is simply a more complex structure
based on the description of each genetically modified organism in the list, which is not a transgenic organism? o. golden o. rice
Based on the description of each genetically modified organism on the list, which is not a transgenic organism is golden because it's an abiotic component that does not have genes to modify.
Genetically modified organism (GMO) are organisms resulting from genetic engineering by changing the genetic information in chromosomes using genetic engineering techniques. The goal of genetically modified organisms (GMO) is to produce organisms with beneficial properties such as resistance to pests and herbicides caused by viruses. Genetically modified organisms are called transgenic organisms
Organisms that can be changed by genetic engineering techniques are rice derived from rice using genetic engineering techniques to produce highly nutritious and disease-resistant food products. While gold is not a genetically engineered organism because gold is not a living thing but one of the abiotic components originating from the rocks of the earth's crust. Gold does not have cells in which there is genetic material in the form of a gene arrangement that can be changed or modified to produce certain traits.
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In Figure 1, which statement best explains the data trend of an increase followed by a decrease in bacterial cell count?
O The number of host cells in the sample increased until carrying capacity was reached.
O Infection with VP is maximal at 5 hours of exposure.
O VP replicates inside the host cell before causing host cell lysis.
O Rate of VP entry into host cells increases then decreases over time.
The statement that best explains the trend in the data of an increase followed by a decrease in bacterial cell count is VP replicates inside the host cell before causing host cell lysis. Correct answer: letter C.
The trend in the data of an increase followed by a decrease in bacterial cell count can be explained by the fact that VP replicates inside the host cell before causing host cell lysis. VP stands for the virulent phage, which is a virus that infects bacteria and replicates within the host cell.
The increase in the bacterial cell count is due to the replication of the VP, while the decrease is due to the lysis of the host cell, releasing the new VP and resulting in a decrease in the bacterial cell count.
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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%
If within a population of butterflies, the color brown (B) is dominant over the color white (b) and 40% of the butterflies are white, and considering HW equilibrium, then the values for recessive allele and genotypes of the population are 0.6 for the recessive allele (√(0.4) equal to 0.6) while the remaining 0.40 will be the proportion of the dominant allele (Option B).
What is the Hardy Weinberg or HW equilibrium in genetics?
The Hardy Weinberg or HW equilibrium in genetics is a model used in population genetics based on the calculation of the recessive and dominant alleles, and consequent genotypic proportions from these frequencies.
Therefore, with this data, we can see that the Hardy Weinberg or HW equilibrium in genetics can be used to calculate the frequencies of the alleles in a population having into account the recessive + dominant alleles equal to 1.
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Bones undergo a continual process of remodeling until the end of adolescence. after adolescence, there is no bone remodeling.
Select one: O a. True O b. False
Bone remodeling is a process that continues throughout a person's life and consists of the removal of mature bone tissue from the skeleton and the formation of new bone tissue. Therefore the correct choice is false.
These processes not only control the reshaping or replacement of bone after injuries such as fractures, but also the micro-damage that occurs as a result of normal activity. The functional demands of the mechanical loading are also taken into consideration during remodeling.
During the first year of a person's life, almost every single bone in their skeleton is replaced. Remodeling occurs at a rate of approximately 10% per year in adults.
Many metabolic bone diseases, such as osteoporosis, are caused by an imbalance in the regulation of the two sub-processes that make up bone remodeling; these sub-processes are bone resorption and bone formation.
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Parathyroid hormone's main function is to question 4 options: increase glucose mobilization during stress or fasting. increase insulin-like growth factor i and linear body growth. increase calcium by mobilizing the ion from bone. synergize with thyroid hormone in various functions. increase sodium through reabsorption from kidney.
Answer:
to increase calcium by mobilizing the iron from bone
Explanation:
It does this by stimulating release of calcium from bones and increasing its reabsorption from the kidneys. This helps to maintain calcium homeostasis and is crucial for normal bone metabolism.#spj4
The national heart, lung, and blood institute and American Heart Association have created a set of parameters to define the presence of metabolic syndrome. Select the set of laboratory assays that are utilized in the NHLBI and AHA criteria for metabolic syndrome diagnosis?
Metabolic syndrome is a cluster of conditions that increase the risk of cardiovascular disease, diabetes, stroke, and other health problems.
The National Heart, Lung, and Blood Institute (NHLBI) and American Heart Association (AHA) have created a set of parameters to define the presence of metabolic syndrome. The set of laboratory assays used in the NHLBI and AHA criteria for metabolic syndrome diagnosis include:
1. Fasting plasma glucose: A measure of the amount of glucose present in the blood after at least eight hours of fasting.
2. Triglycerides: A measure of the amount of fat in the blood.
3. High-density lipoprotein (HDL) cholesterol: A measure of the amount of good cholesterol in the blood.
4. Waist circumference: A measure of the size of the waist.
5. Blood pressure: A measure of the amount of pressure in the blood vessels.
The NHLBI and AHA criteria for metabolic syndrome diagnosis are based on the presence of at least three of the five parameters. If an individual has three or more of the parameters that meet the criteria, they may be diagnosed with metabolic syndrome.
The laboratory assays listed above are used to measure the presence of metabolic syndrome. The NHLBI and AHA criteria are important because they can help diagnose metabolic syndrome and guide healthcare providers to offer the necessary treatments and lifestyle interventions. Early diagnosis and management of metabolic syndrome can help reduce the risk of developing serious health conditions.
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The major reason for chemical bonding is _____.
a for atoms to gain the stability of the octet
b to form a substance in low supply
c to use up an oversupply of atoms
d to produce energy
Answer:
A
Explanation:
when an atom forms a chemical bond its simply just trying to stabilize itself. Atoms become stable when they apply the octet rule.
5 The following question has two parts. First, answer Part A. Then, answer Part B.
Part A:
Which process is responsible for changing the frequency of alleles observed in the medium ground finch population?
A
natural selection
B
selective breeding
C
genetic equilibrium
D
convergent evolution
Part B:
Which BEST describes how the process identified in Part A changed the frequency of alleles?
A
Finches with mutations were unable to survive to reproductive age and did not produce offspring.
B
Finches that mated with individuals with desired traits were better able to survive to reproductive age.
C
Finches that were able to change their genotype to match the environment were most likely to survive.
D
Finches with traits better suited for survival were able to reproduce and pass these traits to their offspring.
Natural selection is the evolutive force responsible for changing the frequency of alleles observed in the medium ground finch population. The new trait was spread when mutated animals mated and reproduced. Part A: A) Natural selection. Part B: D) Finches with traits better suited for survival were able to reproduce and pass these traits to their offspring.
What is natural selection?
Natural selection is an evolutive force that selects beneficial alleles and increases their frequency in the population.
Natural selection favors an allele or act against it. It depends on how the allele affects the fitness of individuals.
The phenotype that expresses the best fitness results in higher survival, fertility, and reproductive rates. Aptitude -fitness- must be significant to the natural selection act in its favor.
Adaptation, acchieved by natural selection, is closely related to selective pressures.
Selective pressure is applied by different organisms or conditions that influence the survival rate of a certain phenotype. It influences the probability of a genotype leaving its gametes to the following generations.
In the case of finches, the selective pressure was the drought, that drove finches to suffer a mutation in their beaks size.
Natural selection was responsible for the rapid change in the finches' population beaks size after the drought. The evolutive force modifies the allelic frequencies, increasing the frequency of genetic variants that expressed the larger beak size and declining the frequency of the alleles that expressed smaller beak size.
Part A: Option A) natural selectionPart B: Option D) Finches with traits better suited for survival were able to reproduce and pass these traits to their offspring.You can learn more about natural selection at
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the only time you must use an in-text citation is when a direct quote is used.
true or false
Answer: true
Explanation:
The statement is false. In-text citations are not exclusively required only when using direct quotes.
In addition to direct quotes, in-text citations are also necessary when paraphrasing or summarizing information from a source. Whenever you present ideas, data, or information that are not your own, regardless of whether it is a direct quote, paraphrase, or summary, you must provide an in-text citation.
In-text citations serve several purposes. They demonstrate academic integrity by giving credit to the original author or source. They allow readers to locate and verify the sources being referenced. They also provide evidence of the research conducted by the author and support the validity and credibility of their work.
Different citation styles, such as APA (American Psychological Association), MLA (Modern Language Association), or Chicago style, have specific rules and formats for in-text citations. These guidelines provide the necessary information to identify the source, such as the author's name, publication date, and page number.
In conclusion, in-text citations are required not only for direct quotes but also for paraphrased or summarized information from sources. Properly citing sources is essential for maintaining academic integrity and acknowledging the contributions of others to the information presented in a work.
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Put the following letters which represent the characteristics of life in order according to the pneumonic device.
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R - Response
C - Cellular organization
D - Development
H - Homeostasis
G - Growth
A - Adaptation
E - Evolution
R - Reaction to Stimulus
In this lesson, you learned about two patterns of population growth and decline the sigmoid and peak phenomena. Does the seal and killer whale relationship represent a sigmoid or peak phenomenon? Please provide supporting details.
Answer:
The seal and killer whale relationship represents a peak phenomena because when seals are abundant the whale population booms and then it bursts when the seal population can't keep up and it falls.
Explanation:
Euchromatin (a) stains lightly ( b ) is partially condensed ( c ) genetically active chromatin with genes ( d ) all of the above
Euchromatin are genetically active chromatin with genes. The correct option is C.
The euchromatin region of chromatin is involved in the transcription of DNA into messenger RNA. Because euchromatin is more permeable, RNA polymerase complexes and gene regulatory proteins can be recruited, transcription can begin.
Decondensed forms of euchromatin are found in the distal arms of chromosomes. Typically, it replicates throughout the S phase and covers the entire nucleus. Euchromatin is the transcriptionally active type of chromatin.
Euchromatin is more genetically active than heterochromatin because it contains more genes and is loosely packed, making it a simpler format for acquiring genetic data.
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Which statement indicates the function of natural killer cells within the immune system?
Attack nonselectively on nonself cells, especially mutated and malignant cells
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Explanation:
bike pic
The statement "Attack nonselectively on nonself cells, especially mutated and malignant cells" accurately indicates the function of natural killer (NK) cells within the immune system.
What are Natural killer cells?
Natural killer cells or NK cells are a type of lymphocyte that plays a critical role in the innate immune response.
One of their primary functions is to recognize and eliminate cells that are infected with viruses or have undergone malignant transformations, such as cancer cells.
Unlike other immune cells that require prior exposure or recognition of specific antigens, NK cells can attack a broad range of nonself cells without the need for prior sensitization.
They are particularly effective in targeting and destroying cells that display abnormal or altered surface markers, making them an essential part of the body's defense against viral infections and cancer.
Thus, the statement is correct.
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Which item is an example of a community? A. A flock of geese flying south for the winter B. A herd of deer and the animals and plants it interacts with C. A lake and all of the animals and plants that live near it D. All of the garter snakes that are alive on Earth at a specific time
A herd of deer and the animals and plants it interacts with is an example of a community. The correct option is B.
What is Community?
A community refers to a group of interacting organisms that coexist and inhabit the same area or habitat.
It includes multiple species living together and the various relationships and interactions that occur among them.
A herd of deer represents a population of a particular species, and the animals and plants it interacts with, such as predators, prey, symbiotic organisms, and the surrounding vegetation, form a community.
This community encompasses the interconnected relationships and dependencies between the deer population and the other organisms within their shared ecosystem.
A flock of geese flying south for the winter refers to a group of migrating geese and represents a population and a lake and all of the animals and plants that live near it, represent an ecosystem rather than a community.
Therefore, the correct option is B.
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In the set-up shown in the figure below, which of the following statements would describe what would be observed after 12 hours of time have elapsed? The level of the solution in the tube would rise because there are now more dissolved solutes present in the beaker than in the tube. The level of the solution in the tube would lower because the glucose and salt would move into the tube. The level of the solution in the tube would rise because there are now more dissolved solutes in the tube than the beaker. The level of the solution would not change as the membrane prohibits any exchange between tube and the beaker. The level of solution in the tubes would see no change because the solute levels are equal on both sides.
After 12 hours of time have elapsed, as per osmosis the level of the solution in the tube would rise because there are now more dissolved solutes in the tube than the beaker.
Osmosis is the phenomenon of transport of solvent particles from their level of higher concentration to the lower concentration. The transport of the solvent particles takes place through a semi-permeable membrane. The membrane restricts the movement of solute particles.
A solution is a mixture of a solute and a solvent. Solutions are homogenous in nature. Solute is usually the solid particles that are dissolved in the substance in liquid state called the solvent.
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This is because there are more dissolved solutes in the tube than the beaker after 12 hours, osmosis would cause the level of the solution to increase.
The phenomenon known as osmosis is the movement of solvent particles from a higher concentration to a lower concentration. Through a semi-permeable membrane, the solvent particle transfer is accomplished. The solute particles can only go so far through the membrane.
A solute and a solvent are combined to form a solution. The nature of solutions is homogeneous. Typically, the solute is made up of solid particles that have been dissolved in the solvent.
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carefully examine the pedigree given below and give the inheritance pattern that the pedigree is presenting.
Pedigree depicting mitochondrial inheritance is explained below with the help of the diagram or pattern given.
The pattern of inheritance associated with alterations in the mtDNA involves both males and females, but always with the condition passed on through the female line (maternal inheritance). Since many mitochondria are passed into the egg from the cells in the ovary, all the offspring of an affected woman are at risk of inheriting the condition, depending on the proportion of mutated mitochondria they inherit. An affected male does not pass his mitochondria on to his children, so his children will be unaffected.
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Complete question:
Carefully examine the pedigree given below and give the inheritance pattern that the pedigree is presenting. 1 000 6 DOO III a b C d e Inheritance Pattern:
which type of moth do you think was more common before the 19th century, when most trees were light in color?
Answer:
Light-colored moths.
Explanation:
The process of Natural Selection, or survival of the fittest, says that only organisms with the most desireable traits will survive and reproduce. In an area with mostly light trees, dark-colored moths would have difficulty blending in with them, so they would be easily spotted and eaten by birds. If the dark moth population is reduced, only light moths will be able to reproduce, so their offspring will be light as well. Therefore, in an area with ligjt trees, light moths will evolve and be the dominant type since they can more easily hide from predators.
