Question 1

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. 
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 2

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. 
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 3

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. 
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 4

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

Question 5

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. 
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 6

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

Question 7

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. 
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 8

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

Question 9

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. 
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 10

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

Question 11

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

Question 12

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

Question 13

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

Question 14

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

Question 15

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

Question 16

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

Question 17

Human sperm cells first arise in the

Accepted Answer

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

Question 18

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. 
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 19

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. 
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 20

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

Exam 46: Animal Reproduction

The use of birth control pills (oral contraceptives)

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

Mature human sperm and ova are similar in that

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

During human heterosexual (mutual)excitement, vasocongestion

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?

The hormone progesterone is produced

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?

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

The hypothalamic hormone that triggers the secretion of FSH is

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?

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

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?

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

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

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

Human sperm cells first arise in the

Which statement about human reproduction is false?

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

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?

Introduction: Evolution and Themes of Biology

The Chemical Context of Life

Water and Life

Carbon and the Molecular Diversity of Life

The Structure and Function of Large Biological Molecules

A Tour of the Cell

Membrane Structure and Function

An Introduction to Metabolism

Cellular Respiration and Fermentation

Photosynthesis

Cell Communication

The Cell Cycle

Meiosis and Sexual Life Cycles

Mendel and the Gene Idea

The Chromosomal Basis of Inheritance

The Molecular Basis of Inheritance

From Gene to Protein

Regulation of Gene Expression

Viruses

Dna Tools and Biotechnology

Genomes and Their Evolution

Descent With Modification: a Darwinian View of Life

The Evolution of Populations

The Origin of Species

The History of Life on Earth

Phylogeny and the Tree of Life

Bacteria and Archaea

Protists

Plant Diversity I: How Plants Colonized Land

Plant Diversity Ii: the Evolution of Seed Plants

Fungi

An Overview of Animal Diversity

An Introduction to Invertebrates

The Origin and Evolution of Vertebrates

Plant Structure, Growth, and Development

Resource Acquisition and Transport in Vascular Plants

Soil and Plant Nutrition

Angiosperm Reproduction and Biotechnology

Plant Responses to Internal and External Signals

Basic Principles of Animal Form and Function

Animal Nutrition

Circulation and Gas Exchange

The Immune System

Osmoregulation and Excretion

Hormones and the Endocrine System

Animal Development

Neurons, Synapses, and Signalling

Nervous Systems

Sensory and Motor Mechanisms

Animal Behaviour

An Introduction to Ecology and the Biosphere

Population Ecology

Community Ecology

Ecosystems and Restoration Ecology

Conservation Biology and Global Change

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