stop when a species forms. speed up with stable conditions. take place over many generations. are independent of the environment.
I gave my students this multiple choice question: Fossil records indicate that species changes generally

Only one answer is correct among these 4 choices:
- stop when a species forms.
- speed up with stable conditions.
- take place over many generations.
- are independent of the environment.

Could you tell me which one is correct?

take place over many generations.