What is the topic of the text?
a) The process of fertilization and the first week of embryonic development.
b) The structure and function of the ...
What is the topic of the text?
a) The process of fertilization and the first week of embryonic development. b) The structure and function of the ovum and spermatozoon. c) The stages of embryonic development after the first week. d) The role of hormones in the process of fertilization.
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