The energy-producing, or energy-storing, molecule is called

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.

The recycling of water from the ground via runoff or transpiration through plants back into the atmosphere is known as part of the question 6 options: hydrogen cycle nitrogen cycle transpiration water cycle

Explain the difference between mutations in sex cell and those in somatic cells