Reproduction - Human Growth

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

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

2. Where does implantation occur and the zygote develop

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

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

5. The developing embryo is connected to the placenta by

A) the umbilical cord
B) the amniotic fluid
C) the developing nerves
D) the spinal 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) 25
B) 17
C) 40
D) 48

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

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

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

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

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

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

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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