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Reproduction - Human Growth
Contributed by: Lefebvre
  • 1. When a fertilized egg divides and forms a ball of cells, it is known as
A) a fetus
B) an embryo
C) an implant
D) a nucleus
  • 2. Where does implantation occur and the zygote develop
A) in the fallopian tube
B) in the vagina
C) in the uterus
D) in the ovary
  • 3. The developing embryo is fed by its mother’s blood through an organ called the
A) amnion
B) vagina
C) placenta
D) uterus
  • 4. What cells begin to form early on in the developing embryo
A) blood cells
B) ear cells
C) lung cells
D) eye 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 newborn
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) 40
C) 48
D) 25
  • 8. A child is considered an infant until it reaches what age?
A) 5 years
B) 3 years
C) 1 year
D) 2 years
  • 9. During puberty, an adolescent’s body goes through what change?
A) There is loss of flexibility.
B) Permanent teeth appear.
C) The reproductive system matures.
D) Eyesight deteriorates.
  • 10. Ordinarily, how many sperm fertilize a female’s egg?
A) several million
B) six to ten
C) a few hundred
D) one
  • 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) labor
B) the uterus
C) full-term
D) the placenta
  • 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 run
B) Baby teeth appear
C) You begin to read
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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