Reproduction - Human Growth

1. When a fertilized egg divides and forms a ball of cells, it is known as

A) an embryo
B) an implant
C) a fetus
D) a nucleus

2. Where does implantation occur and the zygote develop

A) in the vagina
B) in the uterus
C) in the fallopian tube
D) in the ovary

3. The developing embryo is fed by its mother’s blood through an organ called the

A) uterus
B) vagina
C) amnion
D) placenta

4. What cells begin to form early on in the developing embryo

A) ear cells
B) eye cells
C) lung cells
D) blood cells

5. The developing embryo is connected to the placenta by

A) the developing nerves
B) the spinal cord
C) the amniotic fluid
D) the umbilical cord

6. After week 9 or 10 of pregnancy, the developing human acquires features and is then referred to as

A) a zygote
B) a newborn
C) a fetus
D) an embryo

7. A mother goes into labor, and a fetus is ready to be born after approximately how many weeks?

A) 17
B) 25
C) 48
D) 40

8. A child is considered an infant until it reaches what age?

A) 2 years
B) 1 year
C) 3 years
D) 5 years

9. During puberty, an adolescent’s body goes through what change?

A) Eyesight deteriorates.
B) There is loss of flexibility.
C) The reproductive system matures.
D) Permanent teeth appear.

10. Ordinarily, how many sperm fertilize a female’s egg?

A) one
B) six to ten
C) a few hundred
D) several million

11. Which of the following is a characteristic of the placenta?

A) It contains very few blood vessels.
B) It contracts to help the mother give birth.
C) It’s an exchange organ between mother and embryo.
D) It becomes an organ in the developing embryo.

12. The mother’s muscle contractions that help a baby to be born are called

A) labor
B) full-term
C) the placenta
D) the uterus

13. Your navel is the place on your body that was once attached to

A) the umbilical cord
B) the uterus
C) a fallopian tube
D) the amnion

14. Which of the following is a characteristic of infancy?

A) You begin to read
B) You begin to run
C) You need little sleep
D) Baby teeth appear

Students who took this test also took :

Main Idea
Human body systems
unit 5 week 3

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