Because they only pull not push and we need something to push
The answer is a Vagus Nerve.
Answer:
At a given chiasma, an exchange of genetic material can occur between both chromatids, what is called a chromosomal crossover, but this is much more frequent during meiosis than mitosis. In meiosis, absence of a chiasma generally results in improper chromosomal segregation and aneuploidy.
Explanation:
Answer: glucose I think?
Explanation: I’m not sure but it should be more efficient.