Match the macromolecule with its function. Group of answer choices Carbohydrate Short-term energy storage; structure in plant cells Protein Makes up cell membranes; long-term energy storage; hormones Nucleic Acid [ Choose ] Lipid

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.

the correct answer is:

a population changes in response to a change in the environment.

yes it is weird but true