Several studies showed that after drinking an energy drinkafter drinking an energy drink, subjects had increased performanceincreased performance when runningwhen running a marathon. a marathon. a beverage companybeverage company financed this research. identify what is wrong.

it's     c       this is a cell (b) with a nucleus (c) containing dna (a). the dna is organized into chromosomes (d). a section of the chromosome that codes for a trait is called a gene (e).

the correct answer is:

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