Question

for natural selection to result in an adaptation, all of the following conditions must exist except
a. a variety of features or traits within a population
b. a change in the populations environment
c. a trait that helps an organism survive and reproduce
d. an advantageous trait that is genetic or inheritable

Explanation:

Natural selection for adaptation requires variation (A), a beneficial trait (C), and inheritance (D). A stable environment can still have natural selection if other factors (like competition) exist. A change in environment isn’t an absolute must - some adaptations can occur without it (e.g., within - population competition).

Answer:

B. a change in the population’s environment