During early embryonic development, which process produces the three primary germ layers?
Correct answer: B. Gastrulation
- A. Cleavage
- B. Gastrulation
- C. Ovulation
- D. Implantation
Explanation
Gastrulation reorganises the early embryo to form ectoderm, mesoderm and endoderm. Cleavage produces repeated early cell divisions, whereas implantation attaches the blastocyst to the endometrium.
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About Reproductive Anatomy and Conception
Female and male reproductive organs, pelvic anatomy, gametogenesis, the menstrual cycle and the hormonal control of ovulation lead into fertilisation, implantation and early embryonic development. Questions distinguish ovulation from menstruation, fertilisation from implantation, and the normal anatomical changes that allow conception and pregnancy to occur.
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