Reproduction - Human Growth

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

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

2. Where does implantation occur and the zygote develop

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

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

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

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

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

5. The developing embryo is connected to the placenta by

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

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

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

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

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

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

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

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

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

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

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

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

A) It contracts to help the mother give birth.
B) It contains very few blood vessels.
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) the placenta
B) full-term
C) labor
D) the uterus

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

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

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

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

Students who took this test also took :

Main Idea
Human body systems
unit 5 week 3

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