Answer:
Mutations and sexual reproduction increase genetic variation in a population. Natural selection occurs when environmental pressures favor certain traits that are passed on to offspring. ... Individuals may mutate, but natural selection acts by shifting the characteristics of the population as a whole.
Explanation:
Cystic fibrosis is a genetic mutation. It is one of the most common genetic diseases in the world. There is no cure for CF.
Answer:The trait that is expressed is said to be dominant
Explanation:
Answer:
c) Having a small population size
Explanation:
Endangered species are generally those whose population is declining or in a very limited range. Some of other characteristics of endangered species may also be habitat loss, indiscriminate hunting by man or predators, and disease.
Answer:
Storms that produce large, high energy waves that will erode the shore. The waves break off chunks of rocks. This shapes the shoreline.