Answer:
Homologous chromosomes are two pieces of DNA within a diploid organism which carry the same genes,
D. They originate in glucose. They are moved through the chain by NAD+ and FAD but that's not where they originate from.
Answer:
precipitation falls on a rock formation
Explanation:
its because of water, wind and other natural disasters a erosion occurs.
so in this case it should be option 2.
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B because organs help digest food, breathe, and help get rid of bacteria.