I think it is the 1st answer, since all others are wrong.
Answer:
The correct answer is A.) Sister chromatids are pulled apart.
Explanation:
This is because during Anaphase II in Meiosis, the sister chromatids are pulled apart.
Chromosome pairs line up during Prophase I. <em>Not B.</em> When the chromosome pairs pair up this is also Metaphase I. <em>Not C.</em> When chromosome pairs are pulled apart, Anaphase I is occurring.
Hope this helps,
♥<em>A.W.E.</em><u><em>S.W.A.N.</em></u>♥
The parents would both have to be heterozygous for both of the traits, meaning that if the chromosome letters were "B" and "b", their genotypes would both be "Bb." If you put both parents' genotypes into a punnet square, it would be a 25% chance that their child would have blue eyes. Beatrice's genotype would end up being "bb", since blue eyes are a recessive gene in this case.
Considering the following;
I. Heat is not readily available to all living cells.
II. Heat at excessive amounts denatures proteins.
III. Heat does not provide the activation energy for their reactions.
IV. When a critical temperature is reached, proteins no longer function
Answer;
I and IV
Explanation;
Living cells cannot use heat to provide the activation energy for biochemical reactions because heat is not readily available to all living cells and also when a critical temperature is reached, proteins no longer function.
Too much heat can kill an organism by rendering its organelles, cells, tissues and organs permanently inoperable and un-salvageable. The same process can be observed in tissues at low temperatures, and is the cause of frostbite. This is because enzymes are denatured by high temperature and inactivated by low.
Carrying capacity is the maximum number of individuals in a population an ecosystem can support.