Question 1

You observe vertebrate organisms with parthenogenetic reproduction, internal development of embryos, and the lack of parental care for its young. Based on this information, you should categorize these organisms as

Accepted Answer

A)  earthworms.
B)  lizards.
C)  birds.
D)  frogs.
E)  mammals.

Question 2

Human sperm cells first arise in the

Accepted Answer

A)  prostate gland.
B)  vas deferens.
C)  seminiferous tubules.
D)  epididymis.
E)  Sertoli cells.

Question 3

One of the evolutionary "enigmas," or unsolved puzzles, of sexual reproduction is that

Accepted Answer

A)  sexual reproduction allows for more rapid population growth than does asexual reproduction.
B)  only half of the offspring from sexually reproducing females are also females.
C)  asexual reproduction produces offspring of greater genetic variety.
D)  sexual reproduction is completed more rapidly than asexual reproduction.
E)  asexual reproduction is better suited to environments with extremely varying conditions.

Question 4

Refer to the following figure, which diagrams the reproductive anatomy of the human male, to answer the following questions.
 
-In the above figure, which letter points to the prostate gland?

Accepted Answer

A)  A
B)  B
C)  C
D)  D
E)  E

Question 5

The hormone progesterone is produced

Accepted Answer

A)  in the pituitary and acts directly on the ovary.
B)  in the uterus and acts directly on the pituitary.
C)  in the ovary and acts directly on the uterus.
D)  in the pituitary and acts directly on the uterus.
E)  in the uterus and acts directly on the ovary.

Question 6

The junction of the upper vagina and the uterus is called the

Accepted Answer

A)  fallopian tube.
B)  clitoris.
C)  oviduct.
D)  labia majora.
E)  cervix.

Question 7

Which statement about human reproduction is false?

Accepted Answer

A)  Fertilization occurs in the oviduct.
B)  Effective hormonal contraceptives are currently available only for females.
C)  An oocyte completes meiosis after a sperm penetrates it.
D)  The earliest stages of spermatogenesis occur closest to the lumen of the seminiferous tubules.
E)  Spermatogenesis and oogenesis require different temperatures.

Question 8

The use of birth control pills (oral contraceptives)

Accepted Answer

A)  reduces the incidence of ovulation.
B)  prevents fertilization by keeping the sperm and egg physically separated by a mechanical barrier.
C)  prevents implantation of an embryo.
D)  prevents sperm from exiting the male urethra.
E)  prevents oocytes from entering the uterus.

Question 9

After having a vasectomy, which structure no longer contributes to the production of semen?

Accepted Answer

A)  bulbourethral gland
B)  seminiferous tubules
C)  prostate gland
D)  ejaculatory duct
E)  seminal vesicle

Question 10

Among nonmammalian vertebrates, the cloaca is an anatomical structure that functions as

Accepted Answer

A)  a specialized sperm-transfer device produced only by males.
B)  a shared pathway for the digestive, excretory, and reproductive systems.
C)  a region bordered by the labia minora and clitoris in females.
D)  a source of nutrients for developing sperm in the testes.
E)  a gland that secretes mucus to lubricate the vaginal opening.

Question 11

Most of the noncellular fluid in ejaculated human semen is composed of

Accepted Answer

A)  the secretions of the seminiferous tubules.
B)  the secretions of the bulbourethral glands.
C)  the secretions of the seminal vesicles.
D)  the secretions of the prostate gland.
E)  anticoagulant enzymes.

Question 12

Refer to the following figure, which diagrams the reproductive anatomy of the human female, to answer the following questions.
 
-In the above figure, which letter points to the corpus luteum?

Accepted Answer

A)  A
B)  B
C)  C
D)  D
E)  E

Question 13

Among human males, both semen and urine normally travel along the

Accepted Answer

A)  vas deferens.
B)  urinary bladder.
C)  seminal vesicle.
D)  urethra.
E)  ureter.

Question 14

Refer to the following figure, which diagrams the reproductive anatomy of the human male, to answer the following questions.
 
-In the above figure, which letter points to the vas deferens?

Accepted Answer

A)  A
B)  B
C)  C
D)  D
E)  E

Question 15

The hypothalamic hormone that triggers the secretion of FSH is

Accepted Answer

A)  luteinizing hormone (LH) .
B)  estradiol.
C)  progesterone.
D)  human chorionic gonadotropin (HCG) .
E)  gonadotropin-releasing hormone (GnRH) .

Question 16

Refer to the following figure, which diagrams the reproductive anatomy of the human female, to answer the following questions.
 
-In the above figure, which letter points to the uterus?

Accepted Answer

A)  A
B)  B
C)  C
D)  D
E)  E

Question 17

During human heterosexual (mutual) excitement, vasocongestion

Accepted Answer

A)  occurs only in the penis.
B)  occurs only in the testes.
C)  occurs only in the clitoris.
D)  occurs only in the upper vagina.
E)  occurs in the clitoris, vagina, and penis.

Question 18

A reproductive hormone that is secreted directly from a structure in the brain is

Accepted Answer

A)  testosterone.
B)  estradiol.
C)  progesterone.
D)  follicle-stimulating hormone.
E)  gonadotropin-releasing hormone.

Question 19

Mature human sperm and ova are similar in that

Accepted Answer

A)  they both have the same number of chromosomes.
B)  they are approximately the same size.
C)  they each have a flagellum that provides motility.
D)  they are produced from puberty until death.
E)  they are formed before birth.

Question 20

Refer to the following figure, which diagrams the reproductive anatomy of the human female, to answer the following questions.
 
-In the above figure, which letter points to the cervix?

Accepted Answer

A)  A
B)  B
C)  C
D)  D
E)  E

Exam 46: Animal Reproduction

The hypothalamic hormone that triggers the secretion of FSH is

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Mature human sperm and ova are similar in that

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The use of birth control pills (oral contraceptives)

Correct AnswerverifiedShow Answer

Human sperm cells first arise in the

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Refer to the following figure, which diagrams the reproductive anatomy of the human female, to answer the following questions. -In the above figure, which letter points to the cervix?

Correct AnswerverifiedShow Answer

The junction of the upper vagina and the uterus is called the

Correct AnswerverifiedShow Answer

Refer to the following figure, which diagrams the reproductive anatomy of the human female, to answer the following questions. -In the above figure, which letter points to the uterus?

Correct AnswerverifiedShow Answer

Which statement about human reproduction is false?

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Refer to the following figure, which diagrams the reproductive anatomy of the human female, to answer the following questions. -In the above figure, which letter points to the corpus luteum?

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Refer to the following figure, which diagrams the reproductive anatomy of the human male, to answer the following questions. -In the above figure, which letter points to the prostate gland?

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Refer to the following figure, which diagrams the reproductive anatomy of the human male, to answer the following questions. -In the above figure, which letter points to the vas deferens?

Correct AnswerverifiedShow Answer

Most of the noncellular fluid in ejaculated human semen is composed of

Correct AnswerverifiedShow Answer

Among human males, both semen and urine normally travel along the

Correct AnswerverifiedShow Answer

Among nonmammalian vertebrates, the cloaca is an anatomical structure that functions as

Correct AnswerverifiedShow Answer

You observe vertebrate organisms with parthenogenetic reproduction, internal development of embryos, and the lack of parental care for its young. Based on this information, you should categorize these organisms as

Correct AnswerverifiedShow Answer

One of the evolutionary "enigmas," or unsolved puzzles, of sexual reproduction is that

Correct AnswerverifiedShow Answer

After having a vasectomy, which structure no longer contributes to the production of semen?

Correct AnswerverifiedShow Answer

During human heterosexual (mutual) excitement, vasocongestion

Correct AnswerverifiedShow Answer

The hormone progesterone is produced

Correct AnswerverifiedShow Answer

A reproductive hormone that is secreted directly from a structure in the brain is

Correct AnswerverifiedShow Answer

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