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Reproduction - Human Growth
  • 1. When a fertilized egg divides and forms a ball of cells, it is known as
A) a fetus
B) a nucleus
C) an embryo
D) an implant
  • 2. Where does implantation occur and the zygote develop
A) in the vagina
B) in the ovary
C) in the fallopian tube
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) amnion
D) placenta
  • 4. What cells begin to form early on in the developing embryo
A) lung cells
B) eye cells
C) ear cells
D) blood cells
  • 5. The developing embryo is connected to the placenta by
A) the amniotic fluid
B) the umbilical cord
C) the spinal cord
D) the developing nerves
  • 6. After week 9 or 10 of pregnancy, the developing human acquires features and is then referred to as
A) a newborn
B) a fetus
C) an embryo
D) a zygote
  • 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) 5 years
B) 2 years
C) 3 years
D) 1 year
  • 9. During puberty, an adolescent’s body goes through what change?
A) The reproductive system matures.
B) There is loss of flexibility.
C) Eyesight deteriorates.
D) Permanent teeth appear.
  • 10. Ordinarily, how many sperm fertilize a female’s egg?
A) one
B) a few hundred
C) several million
D) six to ten
  • 11. Which of the following is a characteristic of the placenta?
A) It contains very few blood vessels.
B) It’s an exchange organ between mother and embryo.
C) It contracts to help the mother give birth.
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) the uterus
C) the placenta
D) full-term
  • 13. Your navel is the place on your body that was once attached to
A) the uterus
B) the umbilical cord
C) the amnion
D) a fallopian tube
  • 14. Which of the following is a characteristic of infancy?
A) You need little sleep
B) Baby teeth appear
C) You begin to read
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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