1. Give another term for pregnancy.
2. Give one change (maternal or fetal) which occurs during the first trimester.
3. Give one change (maternal or fetal) which occurs during the second trimester.
4. Give one change (maternal or fetal) which occurs during the third trimester.
5. The zygote develops into __________ after a week.
6. Which embryonic theory is now more commonly believed to be true?
7. What is organogenesis?
8. Give one hormone necessary for or associated with pregnancy?
9. What is polyspermy?
10. What ion triggers the cortical reaction?
BONUS: Give one way of artificial fertilization.
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