<span>Comparative embryology is the study which determines the organisms that have the same and almost identical embryo development.
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While, comparative morphology is the scientific study of organisms where their structures, physical entities and elements are identified to be similar or dissimilar. Using only simple basis of empirical observation, a scientist can detect whether two animals are of the same family or not.</span>
The answer is A. The first cell is in the anaphase I and the second cell is
in the anaphase II.
Meiosis is a cell division which results in the
reduction of chromosome number by half - from diploid to haploid - in
daughter cells. It consists of meiosis I and meiosis II. Meiosis I produces two
haploid cells. Meiosis II is analogous to mitosis, so in total,
meiosis results in four haploid cells. So, in meiosis there are two anaphases -
the anaphase I in meiosis I and the anaphase II in meisosis II.
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<span>In anaphase I, the sister chromatids separate
from each other to the opposite sides of the cells. In meiosis I there are 46
chromosomes in duplicate, which are present as pairs of sister
chromatids. In anaphase of meiosis II, since the cell is
haploid, there are 23 chromosomes in duplicate, which are
present as sister chromatids.</span>
The stem cells are so controversial because it involves the destruction of the human embryo as well as its life for just research purposes only.
<h3>What are Stem cells?</h3>
Stem cells may be defined as cells that are totipotent and pluripotent in nature and have the prospect to mature into many diverse types of cells in the body.
Embryonic stem cells are the type that is considered most unethical and controversial. The stem cell debate is the contemplation of the moralities of research involving the maturation and use of human embryos for only research methodologies.
Destruction of such important life for our own benefit or research purposes makes the podium controversial.
Therefore, it is well described above.
To learn more about Stem cells, refer to the link:
brainly.com/question/18243320
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Answer:Folic acid
Explanation:
Folic acid is a vitamin that is used in reactions that transfer single-carbon units. The vitamin also helps reduce the risk of birth defects such as spina bifida and cleft lip. Women of child-bearing age should consume the recommended amount of this vitamin.
Answer:
A. It Shows that organisms have changed over time.
Explanation:
