Ultraviolet radiation can cause mutations in the DNA of skin cells that have been overexposed to the sun. This mutated DNA has no effect on future offspring because

The mutation occurs in somatic cells from the skin. The mutated cells usually die causing sunburn, in worst cases, it can cause skin cancer. The DNA that is transmitted to the offspring is located in the germinative cells that are not affected.

the median of the data is 4.5.

the correct answer is:

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