Question

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? a in a population of fast - running cheetahs, some are born that run slower than most. b in a population of sunflowers, mutations cause some flower heads to produce more seeds. c in a population of brownish rabbits that live in the tundra, some are born with fur that turns white in the winter. d in a populations of birds, mutations result in different beak sizes so the birds do not compete for food in the area.

Explanation:

To determine which mutation causes a population to die out, we analyze each option:

• Option A: Cheetahs rely on speed for hunting and avoiding predators. Slower cheetahs are less likely to survive (find food, escape danger) and reproduce, so this mutation could lead to their dying out.
• Option B: Producing more seeds is a beneficial trait (increases reproductive success), so this mutation won't cause die - out.
• Option C: White fur in winter (tundra has snow) is camouflage, a beneficial trait for avoiding predators, so no die - out.
• Option D: Different beak sizes reduce competition (niche differentiation), which is beneficial for survival, so no die - out.

Answer:

A. In a population of fast - running cheetahs, some are born that run slower than most.