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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) an embryo
C) a fetus
D) a nucleus
  • 2. Where does implantation occur and the zygote develop
A) in the fallopian tube
B) in the ovary
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) amnion
D) placenta
  • 4. What cells begin to form early on in the developing embryo
A) eye cells
B) ear cells
C) blood cells
D) lung cells
  • 5. The developing embryo is connected to the placenta by
A) the spinal cord
B) the amniotic fluid
C) the umbilical 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) an embryo
C) a fetus
D) a zygote
  • 7. A mother goes into labor, and a fetus is ready to be born after approximately how many weeks?
A) 25
B) 48
C) 17
D) 40
  • 8. A child is considered an infant until it reaches what age?
A) 2 years
B) 3 years
C) 1 year
D) 5 years
  • 9. During puberty, an adolescent’s body goes through what change?
A) Eyesight deteriorates.
B) Permanent teeth appear.
C) There is loss of flexibility.
D) The reproductive system matures.
  • 10. Ordinarily, how many sperm fertilize a female’s egg?
A) six to ten
B) several million
C) one
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’s an exchange organ between mother and embryo.
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) full-term
B) the uterus
C) labor
D) the placenta
  • 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) Baby teeth appear
B) You need little sleep
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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