Reproduction - Human Growth

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

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

2. Where does implantation occur and the zygote develop

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

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

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

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

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

5. The developing embryo is connected to the placenta by

A) the spinal cord
B) the amniotic fluid
C) the developing nerves
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 fetus
B) a zygote
C) a newborn
D) an embryo

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

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

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

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

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

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

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

A) a few hundred
B) six to ten
C) one
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 becomes an organ in the developing embryo.
D) It’s an exchange organ between mother and embryo.

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

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

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

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

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

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

Students who took this test also took :

Main Idea
Human body systems
unit 5 week 3

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