QAmino acids differ from one another according to their R. or side carboxyl, COO- hydrogen, H amino, NH3+

Marianne is comparing two animals: a fruit fly and a fruit bat. she asks, "do a fruit fly and a fruit bat share a common ancestor in their evolutionary history? " according to evolutionary theory, what is the answer to marianne's question?

The first signs of cellular differentiation occur in the blastocyst. why is cellular differentiation important for the development of a fully formed human infant?

Me with these questions if you’re it sure don’t answer