Question

PLEASE QUICK!!!!!!!

Answer 1

changes in a population occur abruptly as a response to the environment is the answer (i think). Good luck

Answer 2

Answer:

The correct answer is- Mutation and natural selection both cause changes in a population.

Explanation:

Mutation which occurs in the DNA of genetic cell can be passed from the individual to the offspring through reproduction. This mutation is the cause of genetic variation in the population.  

This genetic variation provides some beneficial characters to the individual in which they are present and help them to adapt to their environment more efficiently. Nature selects this individual in their population and allow the mutation or variation to become more common in the population.  

Therefore both mutation and natural selection cause changes in the population.