They are found In the Benthic stage
The greater amount of eumelanin in darker skin protects folate from being broken down by UV radiation and thus increases fitness among populations in high-intensity UV areas. ... However, it does not explain why there is variation in human skin color.
Answer:
During mitosis, when the nucleus divides, the two chromatids that make up each chromosome separate from each other and move to opposite poles of the cell. ... Mitosis actually occurs in four phases. The phases are called prophase, metaphase, anaphase, and telophase.
Explanation:
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(This is from google)
A.) Veins in the pulmonary circuit carry oxygen-rich blood
red blood cells are used to circulate oxygen through out the body, thus it is true.
<span> In order for the living of the species, when they reproduce, they do so in the millions so that a some of the progeny will be bound to survive.</span>