Answer:
it explains how eukaryotes came from ancestral prokaryotes.
it theorizes that some organelles (mitochondria and chloroplasts), evolved from free-living prokaryotes that were overtaken and subsequently became obligate endosymbionants.
Explanation:
Relative dating is used to determine a fossils approximate age by comparing it to similar rocks and fossils of known ages. Absolute dating is used to determine a precise age of a fossil by using radiometric dating to measure the decay of isotopes, either within the fossil or more often the rocks associated with it.
Answer: 19 Chromosomes in each sperm cell
Explanation:
You'd start off with 38 chromosomes from a Gamete, then it'd enter the phases of Meiosis, which during it's cell division; It splits it's chromosomes so each sperm (Or egg cell if it was a female, but not important to this question) would have 19 chromosomes. (An egg has 19, the sperm has 19)
Answer:
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Explanation:
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