Miracle of Life Worksheet
1. How do cells reproduce?
2. How many chromosomes are contained in a human somatic cell?
3. How many chromosomes are contained in a human sperm or egg cell?
4. T or F: The DNA in your cells is identical to that of a palm tree.
5. Approximately how many eggs are in each ovary of a woman’s body?
6. What is meant by ovulation?
7. Where in a female’s body does fertilization take place?
8. How long does it take the egg to travel the 5” length of a fallopian tube?
9. A sperm cell must fertilize an egg within _________ hours, or else the egg will disintegrate.
10. Name the specific location in the testes where sperm cells are stored.
11. What structure prevents urine from entering the vagina during sexual intercourse?
12. Approximately how many sperm cells does a male’s body produce each day?
13. Name the male sex hormone.
14. How many chromosomes are contained in the head of a sperm cell?
15. How does a sperm cell fuel its locomotion?
16. Approximately what percent of all male sperm cells are defective at first production?
17. Name three reasons why sperm cells can become defective.
18. T or F: The vagina’s environment is “friendly” to the entering sperm cells.
19. How long is a sperm cell able to survive in a woman’s body prior to fertilizing an egg?
20. Name the thin, watery protein produced by the cervix? What does it do?
21. What percent of the sperm cells will travel up the “wrong” or “empty” fallopian tube?
22. What must the sperm cell break through in order to fertilize the egg?
23. Why can only one sperm cell fertilize the egg?
24. Once the egg begins to divide mitotically, it is called a _________________.
25. After 5 days, the zygote is called a __________________.
26. Where does the blastocyst implant itself after 10 days?
27. After 10 weeks, the developing baby is considered to be a_______.
28. What is fetal respiration?
29. What is the purpose of the nasal plugs in the baby’s nose?
30. T or F: The woman giving birth in the movie was having a splendid time, and in fact thought she
was on a tropical beach sipping cool beverages at the time of birth.