1. How do bacteria reproduce and why is it an advantage for them?

2. What process makes sperm and eggs? And why is this process so important to sexual reproduction?

3. When do women start creating eggs?

4. How many sperm are contained in one teaspoon of liquid?

5. How does the cervix control the movement of the sperm?

6. What is the name of the thick protein shell protecting the egg?

7. Exactly how does the sperm get into the egg and make a zygote?

8. Cleavage is occurring while the zygote moves down the fallopian tubes, when does the blastocyst arrive at the uterus?

9. Why is the mother’s immune system suppressed by the blastocyst?

10. Two weeks after conception the formation of the embryo occurs, what is this called?

11. Four and a half weeks after fertilization, what structures are present in the embryo?

12. At seven weeks boys and girls are just alike, the SRY gene can turn on creating a chain reaction. What happens?