Regulation and Reproduction Chapter 6

1. Egg cells are produced in the ______.

• a. ovaries

• b. oviduct

• c. uterus

• d. vagina

2. An egg is usually fertilized in a(n) ______.

• a. oviduct

• b. uterus

• c. vagina

• d. womb

3. The ______ is a muscular organ in which a fertilized egg can develop into a baby.

• a. amnion

• b. oviduct

• c. uterus

• d. vagina

4. Hormones from the ______ gland control the menstrual cycle.

• a. thymus

• b. pituitary

• c. prostate

• d. throid

5. Although nearly ______ sperm are deposited in the female, only one takes part in fertilization.

• a. 2000 to 3000

• b. 20,000 to 30,000

• c. 200 thousand to 300 thousand

• d. 200 million to 300 million

6. When an egg and sperm unite, a(n) _______ is formed.

• a. embryo

• b. fetus

• c. ova

• d. zygote

7. A thin protective membrane, called the ______, forms around the embryo.

• a. amniotic sac

• b. placenta

• c.umbilical cord

• d. uterine wall

8. Unlike identical twins, all of the following can be true of fraternal twins EXCEPT ______.

• a. two different eggs were fertilized

• b. a single egg was fertilized and split

• c. they may look alike

• d. they may be a boy and a girl

9. Where is the egg usually released from?

• a. oviduct

• b.uterus

• c.vagina

• d, ovary

10. What are the chemicals produced by the endocrine system?

• a. enzymes

• b. target tissues

• c.hormones

• d. saliva