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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The chemicals in the food start the digestion process by starting chemical reactions throughout the body. As this is happening, your body stores all the excess energy from the food and stores it as fat.
Answer:
This is because they transitioned from water where they need them and then became mosses which dont have roots but rather hold in water but as they evolved plants got roots so they can dig deep into the group to reach water resivoirs.
Answer:
D) It contains compounds and is therefore a substance
Explanation:
A mixture is composed of multiple compounds.
I believe the answer is metabolism...
