Evolution in a population of island iguanas can be caused by the following agent(s):
a. Natural selection
b. Gene flow
c. Genetic drift
d. All of the above
e. Both natural selection and genetic drift.
Answer: D
Biology Questions and Answers.
a. Natural selection
b. Gene flow
c. Genetic drift
d. All of the above
e. Both natural selection and genetic drift.
Answer: D