How are the starting reactants and the products of photosynthesis and cellular respiration related?

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.

Which measure of an earthquake depends on how close you are to the focus?

Involving transcription and translaton. explain the causes and effects of damage to the genetic code.