Answer:
a. Centromere
A centromere is a specialised DNA sequence of a chromosome that links pair of sister chromarids (a dyad)
I think its e. coli, because it’s bacteria that lives in the intestines of most healthy people and animal. e. coli can also cause serve abdominal cramps, bloody diarrhea, and vomiting
The genetic change in a population or species over many generations is evolution. Whether it be physical or mental increase.
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The whale and the bat are the most different because of the size of the hands or fins.
And the human and the cat are the most similar because they are almost identical to each other from the bottom up
You can conclude that the one that were alike were related in some type of way