Charles darwin observed that finches on different islands had different types of beaks that were most suited to coping with the environment of their particular island. from this insight, he concluded that:
a. life on earth is immutably fixed.
b. life on earth is evolving.
c. animals were created in their present form by god.
d. animals migrate to locations that are most suitable.

b. life on earth is evolving.

Explanation:

Charles Darwin was a Naturalist. He is famous for his work on evolution. He believed that all species of an organism including human beings are developed and evolved through natural selection. Natural selection is a process where organism adapts their environment to survive and produce off-springs. Darwin believed that species evolved from a common ancestor and henceforth few characters are inherited.

answer; biological;

answer; answer; marginal cost;