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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 uterus
B) in the ovary
C) in the vagina
D) in the fallopian tube
  • 3. The developing embryo is fed by its mother’s blood through an organ called the
A) amnion
B) vagina
C) uterus
D) placenta
  • 4. What cells begin to form early on in the developing embryo
A) blood cells
B) lung cells
C) ear cells
D) eye cells
  • 5. The developing embryo is connected to the placenta by
A) the developing nerves
B) the umbilical cord
C) the amniotic fluid
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 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) 40
B) 48
C) 25
D) 17
  • 8. A child is considered an infant until it reaches what age?
A) 3 years
B) 1 year
C) 2 years
D) 5 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) one
B) six to ten
C) several million
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 becomes an organ in the developing embryo.
C) It contains very few blood vessels.
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) full-term
B) labor
C) the uterus
D) the placenta
  • 13. Your navel is the place on your body that was once attached to
A) a fallopian tube
B) the amnion
C) the uterus
D) the umbilical cord
  • 14. Which of the following is a characteristic of infancy?
A) You begin to run
B) You need little sleep
C) Baby teeth appear
D) You begin to read
Students who took this test also took :
Main Idea
Human body systems
unit 5 week 3
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