Answer:
Freeze-thaw
Explanation:
Answer:
frost wedging
Explanation:
Scientific investigations often lead to the formulation of new scientific questions. The observations Charles Darwin's work after he returned home from his voyage and studying the selective breeding of pigeons prompted him to ask which question?
A) Do living things change over time, and if so, how?
B) Are the Galapagos finches and those on the mainland the same species?
C) Are pigeons related to the Galapagos finches?
D) Can selection in nature also lead to a new species over time?
Answer: D. Can selection in nature also lead to a new species over time?
Explanation:
Answer:
Can selection in nature also lead to a new species over time?
Explanation:
Correct on edge 2021 hope this helps :)
Which one of the following gases is not an important component of soil?
oxygen
nitrogen
hydrogen
carbon dioxide
If a cell suddenly stopped producing transfer RNA, which of the following processes would be immediately affected?
Answer: DNA
Explanation: The RNA is a big affect on the DNA because, there will be no repairs of the DNA leading to cancer
How many carbon atoms react with 14 molecules of oxygen to form 14 molecules of
carbon dioxide.
Answer:
28
Explanation:
Answer:
I think it might be 5.
Explanation:
Cnidarians do not have a nervous system like ours. a. How does it differ from ours?
Answer:
Cnidarians have nerve cells that are organized in a nerve net – a diffuse network where neurons interact wherever they cross one another.
Explanation:
4. Compare and Contrast Which kind of plant–a sun plant or a shade plant-has a
higher rate of photosynthesis when light intensity is below 200 umol photons/mº/s?
When light intensity is above 400 umol photons/mº/s?
Answer:
Below 200 umol photons/mº/s, shade plant grow best.
Above 400 umol photons/mº/s, sun plant grow best.
Explanation:
A shade plant has a higher rate of photosynthesis when light intensity is present below 200 umol photons/mº/s because shade plants needs low light intensity for higher photosynthesis while on the other hand, a sun plant has a higher rate of photosynthesis when light intensity is above 400 umol photons/mº/s because it requires high intensity of light for photosynthesis if other factors are also present in large amount such as water and nutrients in the soil.
What gave planets in the solar system their initial speeds?
Answer:
When the cloud of gas which formed the solar system fell inwards to form the solar system, it had net angular momentum. ... The cloud that formed the solar system had angular momentum which was deposited into the velocities of planets and other bodies in orbits around the Sun (as well as the Sun's rotation).
A _______________ from the sun hits chlorophyll and excites an electron, known as __________________________________.
Answer:
Photon, light dependent reaction of photosynthesis
Explanation:
Photosynthesis is the process by which green plants make their own food in the presence of sunlight and water.
There are two steps of Photosynthesis that include light dependent reaction and light-independent reaction.
In light dependent reaction, a photon from the sun is absorbed by the green pigment in leaves called chlorophyll that allow the electron to excite from ground energy level to high energy level. It converts the solar energy into chemical energy and called light dependent reaction of photosynthesis.
Hence, the correct answer is "Photon, light dependent reaction of photosynthesis".
When is carbon dioxide released during aerobic cellular respiration?
Answer:
I hope this helps and rate it if its right
Explanation:
I hope this helps and rate it if its right
help its for science
Convert 226 Kelvin to °C (To convert degrees Celsius to Kelvin use the formula K = °C +273 - rearrange if needed, use whole numbers)
Answer:
-47
Explanation:
Describe mechanism of blood circulation.
Answer:
Look down!! ;)
Explanation:
Blood comes into the right atrium from the body, moves into the right ventricle and is pushed into the pulmonary arteries in the lungs. After picking up oxygen, the blood travels back to the heart through the pulmonary veins into the left atrium, to the left ventricle and out to the body's tissues through the aorta.
Hope this helps!! ;)
Explain how a mutation has caused the Lactase Persistence gene in some people and not in others.
Answer:
It is a case of human niche construction
Explanation:
Lactase is an enzyme of mammals which is required to digest lactose. In humans (like in other mammals), lactase activity decreases during mid-childhood; although there are individuals which are still capable of producing this enzyme even during adult life, a trait known as 'lactase persistence'. Different mutations in the coding region of the lactase gene have been associated with lactase persistence in European, African and Asian populations. On the other hand, the niche construction theory states that the organisms, through their activities and choices, actively modify their own local environment by introducing novel selection pressures. Some examples of niche construction include, among others, alternation of nutrient cycling by plants or lactase persistence in humans. Lactase persistence can be defined as a case of niche construction because this trait was not only genetically inherited but also culturally transmitted through local environments shaped by ancestral populations, i.e., generated by niche construction or ecological inheritance.
Which best explains why DNA technology is important for disease prevention?
A: It can help detect if a person is prone to certain diseases.
B: It can manipulate genes to express desirable traits
C: It can treat diseases with the help of genetically modified food
D: It can increase the genetic diversity of a species.
Can someone explain the Punnett square ?
Answer:
so in the punnet square, you hvae the 4 squares inside the big on. on top of the square, you have 2 letters, representing the dominant and the repressed genes. On one side, typically the left, you have another two letters, again genes. to get the gene types to fill in your squares, you take the first letter of the top set and the first letter of the side set. for this example, we are going to use Bb(top) and BB(side). you would take the B from the top, and you would pu it with the B from the side. in the top left square, you should have BB. next, you go and take that same top B and do it with the second letter of the side, B again. this again gives you BB. next, you take the second letter of the top, b, and you join it with B. in the top right square, you would write or type in Bb. Even though the b was on top, it is after the B because in this cause, it is not the dominant gene. when you do the second top and side letters together, you again get Bb.
Explanation:
the main points.
in this example, i used B to be the dominant gene and b to be the repressed/ submissive gene. you always put the dominant gene letter before the repressedmake sure you fill the squares in properly. in this one, you should have 3 BB and 1 Bb. this shows that the gene set BB is going to showwhen you fill in the squares, the first top letter and the first side letter fill in the top left square.the first top letter and the second side letter go left bottom.second top letter and first side letter go in right top.second top and second side go in right bottom.always place the dominant gene first in the punnet square.add me and message me if you need more help. we can also zoom to figure it out.
There is a belief that there are as many neurons in the human body as there are stars in the Milky Way Galaxy. Do you believe this? How would you react on this?
Answer:
I do believe this. If you take the amount of neurons in the average adult body and expand them to the size of a say a blueberry It would expand to be the approximately the size of the sun
Explanation:
The given statement is true. It is a surprising fact that helps a person to believe that his brain has the power to take him beyond expectations.
What are Neurons?These are the nerve cell that is found in the brain and nerve tissue in the body.It has been estimated that there are 100 billion neurons in the human brain which is about the number of stars in our Galaxy.The human brain is very complex and this complexity comes from such a huge number of neurons.
Therefore, the given statement is true. It is a surprising fact that helps a person to believe that his brain has the power to take him beyond expectations.
Learn more about the human brain:
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how does water pollution harm water ecosystems?
Answer:
the animals die due to the chemicals and stuff in the water
Explanation:
Which of the following processes cycles matter through different parts of an ecosystem?
More than one answer may be correct.
1. the nitrogen cycle
2. the water cycle
3. the carbon cycle
Answer:
the nitrogen cycle, the water cycle, and the carbon cycle
Explanation:
The water, carbon, and nitrogen cycles move nutrients through the different parts of an ecosystem. Water moves through organisms and the environment in different phases. Carbon moves through an ecosystem in carbon dioxide, minerals, and organic compounds. Nitrogen moves through an ecosystem in nitrogen gas, ammonium, nitrates, and organic compounds.
The biogeochemical cycle is a pathway that circulates the chemicals through the abiotic and the biotic factor. The nitrogen, water, and carbon cycle through various regions of an ecosystem.
What is a biogeochemical cycle?The biogeochemical cycle is the movement of the chemicals and compounds of carbon, nitrogen, and water in the biosphere (biotic) and the atmosphere, lithosphere, and hydrosphere (abiotic) spheres of the earth.
These cycles move the nutrient through different spheres in the form of inorganic and organic compounds. It is an essential part of the ecosystem as they regulate the flow of the natural elements.
Therefore, option 1. nitrogen cycle, option 2. water cycle, and option 3. carbon cycle move through various parts of an ecosystem.
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A moth population living in a deciduous forest relies on camouflage to protect itself from predators. These moths typically vary in
color and are thus able to camouflage among both the light and dark-colored trees of the forest. However, as soot emitted from
nearby factories darkens the forests trees, the moth population begins to evolve. Which of the following distribution graphs best
represents the evolution of this moth population?
The distribution of graph A best represents the evolution of this moth population.
What do you mean by Evolution?Evolution is defined as the process of growth and development or the theory that organisms have grown and developed from past organisms.
As soot emitted from nearby factories darken the trees of the forest, it is better to camouflage dark to escape from predators. And in this way evolution of the moth population takes place.
Therefore, the distribution of graph A best represents the evolution of this moth population.
To learn more about Moth evolution, refer to the link:
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how is groundwater impacted by urban sprawl?
Answer:
Urbanization causes changes to the land surface by altering to- pography and vegetation, increasing shallow groundwater tempera- tures.
raising or lowering water tables, and extraction of groundwater during or after construction.
Explanation:
Have A great one!
An_____is a variation of a gene
Answer:
allele
Explanation:
The genetic variation of an entire species is often called genetic diversity. Genetic variations are the differences in DNA segments or genes between individuals and each variation of a gene is called an allele.
Answer:
An allele is a variation of a gene.
Arrange these energy sources from highest to lowest percentage of worldwide use. 1, Nuclear 1. Coal * Hydroelectric
Explanation:
hydro coal nuclear i think it would like thst
The arrangement of the energy according to the highest to the lowest percentage of worldwide use is coal, hydroelectric and nuclear. The arrangement is 2, 3, and 1.
What is energy?Energy is a quantitative property that is used in doing any work. The energy is always transferred from one form to another form. It is present in the conserved form.
The energy which is used majorly is coal, then hydroelectricity, which is made by water then the nuclear power plant.
Thus, the arrangement is 2. Coal, 3, hydroelectric, 1. Nuclear energy.
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what happens when a person is infected with live pathogens
Answer:Once you're infected, viruses invade host cells within your body. They then use the components of the host cell to replicate, producing more viruses. After the replication cycle is complete, these new viruses are released from the host cell. This usually damages or destroys the infected cells.
Explanation:
Answer:
Microorganisms capable of causing disease—pathogens—usually enter our bodies through the mouth, eyes, nose, or through wounds or bites that breach the skin barrier. Organisms can spread—or be transmitted—by several routes.
Explanation:
HELP ASAP
A scientist was studying the stars and their influence on the personalities of 100 people over a Four year time period. Through his investigation, he determined that people that were born during August were more strong-willed and driven than individuals born in October. People born in October were more relaxed and could better handle stress. Is the scientist’s research considered science?
Yes, because the scientist conducted his research for an extended period of time.
Yes, because the scientist followed the scientific method.
No, because the scientist conducted his research with 100 people
No, because the scientist followed personalities which is pseudoscience.
Answer:
No, because the scientist followed personalities which is pseudoscience.
Explanation:
A scientist was studying the stars and their influence on the personalities of 100 people over a Four year time period
Through his investigation, he determined that people that were born during August were more strong-willed and driven than individuals born in October.
People born in October were more relaxed and could better handle stress
Is the scientist’s research considered science?
No, this are beliefs not necesarily true.
Which is more concentrated in starch beaker or tube?
Answer:
beaker
Explanation:
it is more concentrated
Anaerobes carry on whereas aerobes carry on cellular respiration
Answer:
Anaerobes carry on cellular respiration in the absence of oxygen, whereas aerobes carry on cellular respiration in the presence of oxygen.
Explanation:
Many of the cell processes needed need some energy to occur. Cellular respiration is the process by which cells degrade organic compounds and turn them into energy. Cellular respiration follows two ways, which depend on the presence or absence of oxygen, and both of them begin with the process of glycolysis, which occurs in the cytoplasm and does not need oxygen to occur.
Aerobic Respiration
Occurs in the presence of free oxygen.Series of reactions by which pyruvic acid (product of glycolysis) turns into CO₂ and H₂O, producing many ATP molecules. Respiration occurs in the mitochondria.Takes place in two steps or stages: Krebs cycle and electron transporter chain. Glycolysis and Krebs cycle produce electrons, which then travel along the electron transporter chain while releasing energy, and ATP is produced.Anaerobic Respiration
Occurs in the absence of free oxygenSeries of reactions by which using pyruvate (product of glycolysis) 2 ATP molecules van be produced. There are two ways in which anaerobic respiration can be produced: lactic fermentation and alcoholic fermentation. Lactic fermentation produces lactic acid and 2 ATPAlcoholic fermentation occurs in two steps, and the final products are ethylic alcohol, 2ATP, and 2 CO₂The whole anaerobic process occurs outside the mitochondria.all the black widow spiders on a 5 acre farm
A. biotic factor
B. population
C. species
D. community
Species because they group that shares the same traits
During which phase of mitosis do the chromosomes pull away from the middle of the cell?
In Anaphase of mitosis chromosomes pull away from the middle of the cell.
During this period the replicated chromosomes are split and moved to the opposite poles of the cells.What is mitosis?It is the process by which cell replicates its chromosomes and then segregates them, producing two identical nuclei in preparation for cell division.
What are chromosomes?It is along DNA molecule with part or all of the genetic material of an organisms.
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Can you tell me which go where?
Answer:
heredity goes to the first one
phenotype at the second one
Explanation:
Dr. Fatima was investigating the pathways in photosynthesis. She observed a set of chemical reactions whereby electrons were getting excited and energy carriers were being made and water was splitting. What process was she observing?
A. Krebs cycle
B. Light Reactions
C. glycolysis
D. Calvin cycle
please help!! 15 points
Answer:
The answer is the age of the rock.
Explanation:
Scientists can use their tools and DNA to figure out the age of rocks.
