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Unformatted text preview: BIO 101 11/30/11 TA: Moises Guardado firstname.lastname@example.org Name: XiaoLing Zheng Id#: 107346120 1) What is the first step of human development? Fertilization is the first step of human development. 2) Where do sperms and eggs get together? Sperm and eggs get together in the oviduct. 3) What is a zygote? The sperm and egg nuclei ultimately fuse, forming a single celled zygote. 4) What is differentiation? Differentiation is the process by which cells take on various structures and functions 5) After fertilization, what is the special cell division called? And why is it different? The special cell division called cleavage. It is different because in cleavage, cell divide with no accompanying growth. Soon a solid ball of cells called morula has formed. 6) A morula hollows out to form a __ blastocyst __ 7) What are the 3 germ layers formed called?- The endoderm, the mesoderm, and the ectoderm....
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