Psychology Unit 1 C Questions with
Correct Answers
5. The germinal period of prenatal development ________. - ANSWERSC) lasts about
two weeks
6. Irina is in her first week of pregnancy. During this time, ________. - ANSWERSB) the
zygote multiplies and forms a blastocyst
7. Which statement about the embryonic disk is true? - ANSWERSA) It becomes the
new organism.
8. Which statement about a blastocyst is true? - ANSWERSC) It is a hollow, fluid-filled
ball formed by the fourth day.
10. What is one of the functions served by amniotic fluid? - ANSWERSB) It helps keep
the temperature of the prenatal world constant.
11. Which statement about the yolk sac is true? - ANSWERSC) It produces blood cells
until the organs are mature enough to take over this function.
12. Which statement about the placenta is true? - ANSWERSD) It permits food and
oxygen to reach the developing organism.
15. The ________, which forms during the period of the embryo, will become the
________. - ANSWERSD) endoderm; digestive system, lungs, urinary tract, and glands
16. Jalynn is in the last half of the first month of her pregnancy. Which of the following is
developing the fastest in her embryo? - ANSWERSC) nervous system
17. The ________ folds over to form the ________, or primitive spinal cord. -
ANSWERSB) ectoderm; neural tube
18. By the end of Greta's first month of pregnancy, her embryo ________. -
ANSWERSB) is about ¼ inch long
19. During the second month of pregnancy, ________. - ANSWERSC) the heart
develops separate chambers
21. Katie wonders when she will first be able to hear her fetus's heartbeat through a
stethoscope. You tell her that this should happen by the ________. - ANSWERSB) third
month of pregnancy
, 25. A 20-week-old fetus can ________. - ANSWERSA) be stimulated as well as irritated
by sounds
26. A baby born between the seventh and eighth months of pregnancy ________. -
ANSWERSB) usually needs oxygen assistance to breathe
27. Liz is 36 weeks pregnant. A rise in her baby's heart rate is probably followed within
five seconds by a ________. - ANSWERSA) burst of motor activity
28. In the eighth month of pregnancy, ________. - ANSWERSD) the fetus receives
antibodies from the mother's blood
30. The term teratogen refers to ________. - ANSWERSA) any environmental agent
that causes damage during the prenatal period
31. The harm done by teratogens ________. - ANSWERSD) depends in part on age at
the time of exposure
32. Which statement about the harm done by teratogens is true? - ANSWERSB) The
genetic makeup of the mother and the developing organism plays an important role.
33. In the ________ period of development, teratogens rarely have any impact. -
ANSWERSA) germinal
35. During her pregnancy, Ananya increased her intake of coffee and tea. Her doctor is
likely to tell her that high doses of caffeine contained in coffee and tea increase the risk
of ________. - ANSWERSD) low birth weight
36. Mateo was born prematurely to Emily, a cocaine addict. Mateo's caregivers can
expect that ________. - ANSWERSB) his cries will be abnormally shrill
37. Which statement about prenatal marijuana exposure is true? - ANSWERSA) It is
linked to aggression in childhood and adolescence.
38. The best-known prenatal effect of smoking is ________. - ANSWERSC) low birth
weight
39. Newborns of smoking mothers ________. - ANSWERSB) display more muscle
tension
40. Maryann is pregnant and works in a smoke-filled environment. What can you tell her
about passive smoking? - ANSWERSB) Passive smoking is related to low birth weight,
infant death, and childhood respiratory illnesses.
41. Terrance, whose birth mother drank alcohol heavily throughout pregnancy, has a
thin upper lip, short eyelid openings, a small head, and a smooth philtrum. His physical
Correct Answers
5. The germinal period of prenatal development ________. - ANSWERSC) lasts about
two weeks
6. Irina is in her first week of pregnancy. During this time, ________. - ANSWERSB) the
zygote multiplies and forms a blastocyst
7. Which statement about the embryonic disk is true? - ANSWERSA) It becomes the
new organism.
8. Which statement about a blastocyst is true? - ANSWERSC) It is a hollow, fluid-filled
ball formed by the fourth day.
10. What is one of the functions served by amniotic fluid? - ANSWERSB) It helps keep
the temperature of the prenatal world constant.
11. Which statement about the yolk sac is true? - ANSWERSC) It produces blood cells
until the organs are mature enough to take over this function.
12. Which statement about the placenta is true? - ANSWERSD) It permits food and
oxygen to reach the developing organism.
15. The ________, which forms during the period of the embryo, will become the
________. - ANSWERSD) endoderm; digestive system, lungs, urinary tract, and glands
16. Jalynn is in the last half of the first month of her pregnancy. Which of the following is
developing the fastest in her embryo? - ANSWERSC) nervous system
17. The ________ folds over to form the ________, or primitive spinal cord. -
ANSWERSB) ectoderm; neural tube
18. By the end of Greta's first month of pregnancy, her embryo ________. -
ANSWERSB) is about ¼ inch long
19. During the second month of pregnancy, ________. - ANSWERSC) the heart
develops separate chambers
21. Katie wonders when she will first be able to hear her fetus's heartbeat through a
stethoscope. You tell her that this should happen by the ________. - ANSWERSB) third
month of pregnancy
, 25. A 20-week-old fetus can ________. - ANSWERSA) be stimulated as well as irritated
by sounds
26. A baby born between the seventh and eighth months of pregnancy ________. -
ANSWERSB) usually needs oxygen assistance to breathe
27. Liz is 36 weeks pregnant. A rise in her baby's heart rate is probably followed within
five seconds by a ________. - ANSWERSA) burst of motor activity
28. In the eighth month of pregnancy, ________. - ANSWERSD) the fetus receives
antibodies from the mother's blood
30. The term teratogen refers to ________. - ANSWERSA) any environmental agent
that causes damage during the prenatal period
31. The harm done by teratogens ________. - ANSWERSD) depends in part on age at
the time of exposure
32. Which statement about the harm done by teratogens is true? - ANSWERSB) The
genetic makeup of the mother and the developing organism plays an important role.
33. In the ________ period of development, teratogens rarely have any impact. -
ANSWERSA) germinal
35. During her pregnancy, Ananya increased her intake of coffee and tea. Her doctor is
likely to tell her that high doses of caffeine contained in coffee and tea increase the risk
of ________. - ANSWERSD) low birth weight
36. Mateo was born prematurely to Emily, a cocaine addict. Mateo's caregivers can
expect that ________. - ANSWERSB) his cries will be abnormally shrill
37. Which statement about prenatal marijuana exposure is true? - ANSWERSA) It is
linked to aggression in childhood and adolescence.
38. The best-known prenatal effect of smoking is ________. - ANSWERSC) low birth
weight
39. Newborns of smoking mothers ________. - ANSWERSB) display more muscle
tension
40. Maryann is pregnant and works in a smoke-filled environment. What can you tell her
about passive smoking? - ANSWERSB) Passive smoking is related to low birth weight,
infant death, and childhood respiratory illnesses.
41. Terrance, whose birth mother drank alcohol heavily throughout pregnancy, has a
thin upper lip, short eyelid openings, a small head, and a smooth philtrum. His physical
