Complete these three sentences using the same pair of words each time . Ice is made up of Water is made up of Water vapour is made up of ___

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.

Look at the photo of the leaf. which term best describes this leaf?

What did hunter gathers do to alter the environment?