The term that refers to the process
in which two gametes fuse to make one zygote is called fertilization. Fertilization
<span>is the union of male
and female gametes (reproductive cells) to produce a zygote (fertilized egg).
</span>The correct answer between all the choices given is the third choice or
letter C. I am hoping that this answer has satisfied your query and it will be
able to help you in your endeavor, and if you would like, feel free to ask
another question.
A single species that has evolved into several different forms that live in different ways has undergone "b. convergent evolution" since the multiple "divergent" species are seen to "converge" into a single species if you go back far enough in time.