Answer:
c. Two sister chromatids did not separate into the proper daughter cells during anaphase.
Explanation:
The observed cell is undergoing mitosis which does not include separation of homologous chromosomes. During anaphase of mitosis, two sister chromatids of each chromosome separate from each other. They move to opposite poles. This results in equal distribution of two complete sets of chromosomes to each daughter cell.
However, the failure of two sister chromatids of a chromosome during anaphase would lead to the formation of two abnormal daughter cells. One of the daughter cells would have one extra chromosome (2n+1) while the other would lack one chromosome from the diploid set (2n-1).
Stomata play an important role in photosynthesis as they allow the plant to absorb carbon dioxide from the environment. In exchange, stomata allow oxygen, which is a waste product of photosynthesis, to be released. In the process, water vapor is also lost as the internal parts of the leaves are exposed. To reduce exposure, stomata are found on the underside of the leaves. They are protected from the sun as excessive heat can increase the rate of water vapor leaving and thus wither the plant. Stomata also have guard cells around the epidermis that close when too much water is being lost.
Answer: 3.friction
Explanation: friction is a force of resistance acting between objects in contact and tending to dampen their motion
The advantages of using mixed method are, the pros and cons can be identified and compared for each method. Thus option B is correct.
<h3>What are advantages of using mixed method?</h3>
Mixed methods in research is an advanced form which is basically a combination of quantitative research and qualitative research.
It can help the researcher to gain a more clear and complete picture as it integrates benefits of both methods.
Mixed methods research is used in the behavioral, health, and social sciences, societal research.
Qualitative research has smaller sample size, so mixed methods research is applied for the comparative strength of externally valid quantitative research.
Mixing methods allowed to get findings in detail to the conclusion.
Using mixed methods from different data on same subject can give more credible results.
Thus option B is correct.
Learn more about mixed method, here:
brainly.com/question/28077230
#SPJ2
