Consider the model for natural selection. in a population of living things, genetic variation exists. one source of variation is mutation. which scenario listed here could be a mutation that causes members of a population to die out?

The answer Is A, about the slow running cheetahs I answered on USA test prep

your body is trying to warm itself up. or more precisely, sensors in your skin send messages to your brain to generate heat to your body.

where in your body is there an enzyme that does function at a high or low ph? what is the name of that enzyme and its function?