Question 1

Normal males have

Accepted Answer

A)   one X and one Y chromosome.
B)   two X chromosomes.
C)   two Y chromosomes.
D)   two X and two Y chromosomes.
E)   no sex chromosomes.F) A) and E)
G) C) and E)

Question 2

The substance called ________ decreases surface tension in the newborn's lungs.

Accepted Answer

The answer of The substance called ________ decreases surface tension...

Question 3

The placental membrane is composed of

Accepted Answer

A)   the embryonic disc.
B)   a single layer of epithelial cells.
C)   a double layer of epithelial cells.
D)   the amnion and chorion.
E)   the yolk sac.F) B) and D)
G) A) and C)

Question 4

A premature fetus has an increased chance of surviving if it produces enough surfactant to aid the functions of its

Accepted Answer

A)   endocrine system.
B)   respiratory system.
C)   digestive system.
D)   nervous system.
E)   cardiovascular system.F) All of the above
G) D) and E)

Question 5

Passive aging

Accepted Answer

A)   is a result of a person being less active in later years.
B)   is a process that begins before birth.
C)   is a breakdown of structures and slowing of functions.
D)   involves apoptosis.
E)   may involve the development of autoimmunity.F) A) and B)
G) A) and C)

Question 6

The postnatal period extends from

Accepted Answer

A)   the fertilized egg until the end of life.
B)   fertilization until birth.
C)   birth to death.
D)   becoming a parent until death.
E)   the beginning of the fetal period until the beginning of childhood.F) A) and E)
G) C) and D)

Question 7

The fetal blood that passes through the ductus venosus is relatively

Accepted Answer

A)   low in oxygen and nutrients.
B)   high in oxygen and nutrients.
C)   low in oxygen but high in nutrients.
D)   high in oxygen but low in nutrients.
E)   low in vitamins and minerals.F) A) and B)
G) B) and E)

Question 8

The hormone that stimulates the mammary glands to secrete milk is

Accepted Answer

A)   estrogen.
B)   progesterone.
C)   oxytocin.
D)   prolactin.
E)   luteinizing hormone.F) A) and B)
G) C) and D)

Question 9

Following birth,the infant's metabolic rate

Accepted Answer

A)   increases and its oxygen consumption increases.
B)   increases and its oxygen consumption decreases.
C)   decreases and its oxygen consumption increases.
D)   decreases and its oxygen consumption decreases.
E)   remains as it was in the uterus.F) None of the above
G) A) and C)

Question 10

The fetal stage of development begins at the end of the

Accepted Answer

A)   second week.
B)   fourth week.
C)   eighth week.
D)   tenth week.
E)   twelfth week.F) None of the above
G) C) and D)

Question 11

During the early stages of pregnancy,the hormone ________ maintains the corpus luteum,until the placenta is established.

Accepted Answer

A)   human chorionic gonadotropin
B)   testosterone
C)   estrogen
D)   progesterone
E)   androgenF) A) and B)
G) B) and D)

Question 12

The ductus arteriosus allows fetal blood to move from the

Accepted Answer

A)   right atrium into the left atrium.
B)   left atrium into the right atrium.
C)   aorta into the pulmonary trunk.
D)   pulmonary trunk into the aorta.
E)   arterioles to capillaries.F) A) and C)
G) A) and B)

Question 13

Development is a continuous process during which the individual changes from one life phase to another,including growth.

Accepted Answer

A) True 
 B)False

Question 14

Factors that can cause congenital malformations by affecting an embryo during its period of rapid growth and development are called teratogens.

Accepted Answer

A) True 
 B)False

Question 15

The foramen ovale is an opening that allows fetal blood to pass from the

Accepted Answer

A)   right atrium to the left atrium.
B)   left atrium to the right atrium.
C)   right ventricle to the left ventricle.
D)   left ventricle to the right ventricle.
E)   fetal liver to the inferior vena cava.F) C) and D)
G) None of the above

Question 16

The cells of a blastocyst that give rise to the body of the developing offspring constitute the

Accepted Answer

A)   blastomere.
B)   inner cell mass.
C)   trophoblast.
D)   zona pellucida.
E)   corona radiata.F) All of the above
G) A) and E)

Question 17

The slender projections that grow out from the trophoblast into the uterine wall are called ________.

Accepted Answer

The answer of The slender projections that grow out from...

Question 18

The first cell of an offspring is a(an)________.

Accepted Answer

The answer of The first cell of an offspring is...

Question 19

The primary function of surfactant is to increase surface tension in the newborn's lungs.

Accepted Answer

A) True 
 B)False

Exam 20: Pregnancy, growth, development, and Genetics

Following birth,the infant's metabolic rate

Correct Answer
verified

The fetal stage of development begins at the end of the

Correct Answer
verified

The hormone that stimulates the mammary glands to secrete milk is

Correct Answer
verified

The foramen ovale is an opening that allows fetal blood to pass from the

Correct Answer
verified

A premature fetus has an increased chance of surviving if it produces enough surfactant to aid the functions of its

Correct Answer
verified

The fetal blood that passes through the ductus venosus is relatively

Correct Answer
verified

Development is a continuous process during which the individual changes from one life phase to another,including growth.

Correct Answer
verified

The slender projections that grow out from the trophoblast into the uterine wall are called ________.

Correct Answer
verified

The cells of a blastocyst that give rise to the body of the developing offspring constitute the

Correct Answer
verified

The postnatal period extends from

Correct Answer
verified

Factors that can cause congenital malformations by affecting an embryo during its period of rapid growth and development are called teratogens.

Correct Answer
verified

Normal males have

Correct Answer
verified

The primary function of surfactant is to increase surface tension in the newborn's lungs.

Correct Answer
verified

The substance called ________ decreases surface tension in the newborn's lungs.

Correct Answer
verified

The first cell of an offspring is a(an)________.

Correct Answer
verified

The ductus arteriosus allows fetal blood to move from the

Correct Answer
verified

The placental membrane is composed of

Correct Answer
verified

During the early stages of pregnancy,the hormone ________ maintains the corpus luteum,until the placenta is established.

Correct Answer
verified

Passive aging

Correct Answer
verified

Exam 20: Pregnancy, growth, development, and Genetics

Following birth,the infant's metabolic rate

Correct AnswerverifiedShow Answer

The fetal stage of development begins at the end of the

Correct AnswerverifiedShow Answer

The hormone that stimulates the mammary glands to secrete milk is

Correct AnswerverifiedShow Answer

The foramen ovale is an opening that allows fetal blood to pass from the

Correct AnswerverifiedShow Answer

A premature fetus has an increased chance of surviving if it produces enough surfactant to aid the functions of its

Correct AnswerverifiedShow Answer

The fetal blood that passes through the ductus venosus is relatively

Correct AnswerverifiedShow Answer

Development is a continuous process during which the individual changes from one life phase to another,including growth.

Correct AnswerverifiedShow Answer

The slender projections that grow out from the trophoblast into the uterine wall are called ________.

Correct AnswerverifiedShow Answer

The cells of a blastocyst that give rise to the body of the developing offspring constitute the

Correct AnswerverifiedShow Answer

The postnatal period extends from

Correct AnswerverifiedShow Answer

Factors that can cause congenital malformations by affecting an embryo during its period of rapid growth and development are called teratogens.

Correct AnswerverifiedShow Answer

Normal males have

Correct AnswerverifiedShow Answer

The primary function of surfactant is to increase surface tension in the newborn's lungs.

Correct AnswerverifiedShow Answer

The substance called ________ decreases surface tension in the newborn's lungs.

Correct AnswerverifiedShow Answer

The first cell of an offspring is a(an)________.

Correct AnswerverifiedShow Answer

The ductus arteriosus allows fetal blood to move from the

Correct AnswerverifiedShow Answer

The placental membrane is composed of

Correct AnswerverifiedShow Answer

During the early stages of pregnancy,the hormone ________ maintains the corpus luteum,until the placenta is established.

Correct AnswerverifiedShow Answer

Passive aging

Correct AnswerverifiedShow Answer

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