Answer: Explanation:
It is a two-step process that reduces the chromosome number by half—from 46 to 23—to form sperm and egg cells. When the sperm and egg cells unite at conception, each contributes 23 chromosomes so the resulting embryo will have the usual 46.
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Answer:
A
Explanation:
Divergent Evolution occurs when a group of animals emigrates into a new area that is separated by a geographic barrier such as a mountain.
B because your blood goes to organs and give the body nutrients.
<span>During photosynthesis, plants use carbon dioxide and produce oxygen. During metabolism oxygen is used and carbon dioxide is a product. Humans impact the carbon cycle during the combustion of any type of fossil fuel, which may include oil, coal, or natural gas.</span>
<span>False. A condition in which gametes are the same size and shape is isogamy. </span>
