What Are The Steps Of Fertilization And Explain What Cleavage Is?
What Are The Steps Of Fertilization And Explain What Cleavage Is? Fertilization: the process of a single sperm cell combining with single egg cell to form a zygote. Cleavage: rapid, multiple rounds of mitotic cell division where the overall size of the embryo does not increase. The developing embryo is called a blastula following completion