During sex men should release the semen in of the woman​

Animal bodies (and even plant bodies for that matter) are complex enough that life couldn't exist without enzymes. enzymes are usually large, complex biological catalysts that are expensive to make. enzymes speed up the rate of chemical reactions without being used up during the reaction (they can be reused many times). they are highly specific in the reactions they regulate. knowing what enzymes are and how they function, why does this explain why complex life forms could not exist if there were no enzymes.

Place the steps tor the formation of the enzyme pepsinogen in correct order

Which best explains why there are 64 possible codons in the genetic code and only 20 amino acids that make protiens of living organisms on earth