How does reproduction in yeast compare to reproduction in a dairy cattle?

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Out of the seven main animal groups (fish, mammals, birds, insects, reptiles, amphibians, and arachnids), how many contain members with internal backbones? a. 5 b. 3 c. 7 d. 1

What must be true for natural selection to heppen

Q: a: in sexually reproducing animals, once fertilization of the egg takes place, the exists as a single cell until cell division begins