Question 1

After spermatogenesis, sperm cells are generally stored in the

Accepted Answer

A)  spermatophore. 
B)  prostate gland. 
C)  vas deferens. 
D)  seminiferous tubule. 
E)  epididymis. 
A)  spermatophore. 
B)  prostate gland. 
C)  vas deferens. 
D)  seminiferous tubule. 
E)  epididymis.

Question 2

Sexual reproduction has an evolutionary advantage over asexual reproduction because it

Accepted Answer

A)  results in both males and females of a species. 
B)  is a more lengthy process. 
C)  promotes genetic variability to cope with changes in the environment. 
D)  is controlled by many hormonal mechanisms. 
E)  protects and nurtures the embryo. 
A)  results in both males and females of a species. 
B)  is a more lengthy process. 
C)  promotes genetic variability to cope with changes in the environment. 
D)  is controlled by many hormonal mechanisms. 
E)  protects and nurtures the embryo.

Question 3

Which of the following methods of contraception is most likely to fail?

Accepted Answer

A)  Rhythm method 
B)  Birth control pills 
C)  Diaphragm 
D)  Vasectomy 
E)  Condom 
A)  Rhythm method 
B)  Birth control pills 
C)  Diaphragm 
D)  Vasectomy 
E)  Condom

Question 4

If the seminal vesicles in a human male are defective,

Accepted Answer

A)  the man makes functional sperm but he is unable to ejaculate. 
B)  the man's sperm lack functional flagella. 
C)  the fluid needed to lubricate the man's urethra for easier sperm travel is defective. 
D)  the man's semen lacks the fructose fuel needed for the sperm to swim. 
E)  the man's Leydig cells do not make testosterone needed to stimulate spermatogenesis. 
A)  the man makes functional sperm but he is unable to ejaculate. 
B)  the man's sperm lack functional flagella. 
C)  the fluid needed to lubricate the man's urethra for easier sperm travel is defective. 
D)  the man's semen lacks the fructose fuel needed for the sperm to swim. 
E)  the man's Leydig cells do not make testosterone needed to stimulate spermatogenesis.

Question 5

Semen, which is the fluid matrix for sperm during emission and ejaculation, contains all of the following except

Accepted Answer

A)  seminal fluid from the seminal vesicles. 
B)  glucose to serve as an energy source for the sperm. 
C)  alkaline secretions from the prostate gland. 
D)  hormonelike substances called prostaglandins. 
E)  clotting enzymes. 
A)  seminal fluid from the seminal vesicles. 
B)  glucose to serve as an energy source for the sperm. 
C)  alkaline secretions from the prostate gland. 
D)  hormonelike substances called prostaglandins. 
E)  clotting enzymes.

Question 6

The blastocyst normally implants within the

Accepted Answer

A)  vas deferens. 
B)  ovarian follicle tissue. 
C)  endometrium of the uterus. 
D)  myometrium of the vagina. 
E)  chorion. 
A)  vas deferens. 
B)  ovarian follicle tissue. 
C)  endometrium of the uterus. 
D)  myometrium of the vagina. 
E)  chorion.

Question 7

Which of the following anatomical features is shared in most mammals by both the reproductive and excretory systems?

Accepted Answer

A)  Prostate gland 
B)  Seminiferous tubules 
C)  Vas deferens 
D)  Urethra 
E)  Epididymis 
A)  Prostate gland 
B)  Seminiferous tubules 
C)  Vas deferens 
D)  Urethra 
E)  Epididymis

Question 8

The two pituitary gonadotropins that coordinate female reproductive events are _______ and _______.

Accepted Answer

A)  follicle-stimulating hormone; estrogen 
B)  estrogen; progesterone 
C)  follicle-stimulating hormone; progesterone 
D)  luteinizing hormone; progesterone 
E)  luteinizing hormone; follicle-stimulating hormone 
A)  follicle-stimulating hormone; estrogen 
B)  estrogen; progesterone 
C)  follicle-stimulating hormone; progesterone 
D)  luteinizing hormone; progesterone 
E)  luteinizing hormone; follicle-stimulating hormone

Question 9

Which method of contraception also helps prevent the spread of sexually transmitted disease?

Accepted Answer

A)  Diaphragm 
B)  Cervical cap 
C)  Condom 
D)  IUD 
E)  Birth control pill 
A)  Diaphragm 
B)  Cervical cap 
C)  Condom 
D)  IUD 
E)  Birth control pill

Question 10

The contragestational pill RU-486 blocks _______ receptors.

Accepted Answer

A)  luteinizing hormone 
B)  progesterone 
C)  estrogen 
D)  follicle-stimulating hormone 
E)  gonadotropin-releasing hormone 
A)  luteinizing hormone 
B)  progesterone 
C)  estrogen 
D)  follicle-stimulating hormone 
E)  gonadotropin-releasing hormone

Question 11

Why do physicians recommend that men who want children but who have been diagnosed with low sperm counts avoid wearing tight-fitting shorts?

Accepted Answer

The optimal temperature for spermatogene

Question 12

Which of the following statements is false?

Accepted Answer

A)  Delivery of the placenta occurs after delivery of the baby. 
B)  If used correctly, condoms can prevent pregnancy and protect against sexually transmitted diseases (STDs). 
C)  RU-486 blocks estrogen receptors. 
D)  Men, but not women, have a refractory period following orgasm. 
E)  Breastfeeding immediately after birth helps shrink the uterus. 
A)  Delivery of the placenta occurs after delivery of the baby. 
B)  If used correctly, condoms can prevent pregnancy and protect against sexually transmitted diseases (STDs). 
C)  RU-486 blocks estrogen receptors. 
D)  Men, but not women, have a refractory period following orgasm. 
E)  Breastfeeding immediately after birth helps shrink the uterus.

Question 13

A primary oocyte is _______ and arrested in _______ of meiosis.

Accepted Answer

A)  haploid; prophase I 
B)  diploid; prophase I 
C)  haploid; prophase II 
D)  diploid; prophase II 
E)  haploid; metaphase 
A)  haploid; prophase I 
B)  diploid; prophase I 
C)  haploid; prophase II 
D)  diploid; prophase II 
E)  haploid; metaphase

Question 14

Some animals can reproduce sexually or asexually. When and why might these animals switch between sexual and asexual reproduction?

Accepted Answer

Asexual reproduction does not waste time

Question 15

Females of most mammals have a period of sexual receptivity called _______.

Accepted Answer

The answer of Females of most mammals have a period...

Question 16

Which of the following results in progeny that inherit all the characteristics of a single parent?

Accepted Answer

A)  Copulation 
B)  Asexual reproduction 
C)  Gametogenesis 
D)  Sexual reproduction 
E)  Fertilization 
A)  Copulation 
B)  Asexual reproduction 
C)  Gametogenesis 
D)  Sexual reproduction 
E)  Fertilization

Question 17

Most methods of birth control focus on

Accepted Answer

A)  preventing oogenesis. 
B)  preventing spermatogenesis. 
C)  preventing fertilization. 
D)  decreasing libido. 
E)  decreasing testosterone levels. 
A)  preventing oogenesis. 
B)  preventing spermatogenesis. 
C)  preventing fertilization. 
D)  decreasing libido. 
E)  decreasing testosterone levels.

Question 18

A _______ consists of one egg cell and the surrounding ovarian cells.

Accepted Answer

The answer of A _______ consists of one egg cell...

Question 19

During the _______ phase of a woman's sexual response, blood drains from the genitals.

Accepted Answer

The answer of During the _______ phase of a woman's...

Question 20

Which of the following is an example of positive feedback control in the reproductive cycle of males or females?

Accepted Answer

A)  The increased response of the hypothalamus and anterior pituitary gland in response to estrogen 
B)  The decreased response of the hypothalamus and anterior pituitary gland in response to estrogen 
C)  The inhibition of luteinizing hormone by high levels of testosterone 
D)  The stimulation of luteinizing hormone by low levels of testosterone 
E)  The inhibition of oxytocin release by increased uterine contractions during childbirth 
A)  The increased response of the hypothalamus and anterior pituitary gland in response to estrogen 
B)  The decreased response of the hypothalamus and anterior pituitary gland in response to estrogen 
C)  The inhibition of luteinizing hormone by high levels of testosterone 
D)  The stimulation of luteinizing hormone by low levels of testosterone 
E)  The inhibition of oxytocin release by increased uterine contractions during childbirth

Exam 43: Animal Reproduction

After spermatogenesis, sperm cells are generally stored in the

Sexual reproduction has an evolutionary advantage over asexual reproduction because it

Which of the following methods of contraception is most likely to fail?

If the seminal vesicles in a human male are defective,

Semen, which is the fluid matrix for sperm during emission and ejaculation, contains all of the following except

The blastocyst normally implants within the

Which of the following anatomical features is shared in most mammals by both the reproductive and excretory systems?

The two pituitary gonadotropins that coordinate female reproductive events are _______ and _______.

Which method of contraception also helps prevent the spread of sexually transmitted disease?

The contragestational pill RU-486 blocks _______ receptors.

Why do physicians recommend that men who want children but who have been diagnosed with low sperm counts avoid wearing tight-fitting shorts?

Which of the following statements is false?

A primary oocyte is _______ and arrested in _______ of meiosis.

Some animals can reproduce sexually or asexually. When and why might these animals switch between sexual and asexual reproduction?

Females of most mammals have a period of sexual receptivity called _______.

Which of the following results in progeny that inherit all the characteristics of a single parent?

Most methods of birth control focus on

A _______ consists of one egg cell and the surrounding ovarian cells.

During the _______ phase of a woman's sexual response, blood drains from the genitals.

Which of the following is an example of positive feedback control in the reproductive cycle of males or females?

Studying Life

Small Molecules and the Chemistry of Life

Proteins, Carbohydrates, and Lipids

Nucleic Acids and the Origin of Life

Cells: the Working Units of Life

Cell Membranes

Cell Signaling and Communication

Energy, Enzymes, and Metabolism

Pathways That Harvest Chemical Energy

Photosynthesis: Energy From Sunlight

The Cell Cycle and Cell Division

Inheritance, Genes, and Chromosomes

Dna and Its Role in Heredity

From Dna to Protein: Gene Expression

Gene Mutation and Molecular Medicine

Regulation of Gene Expression

Genomes

Recombinent Dna and Biotechnology

Differential Gene Expression in Development

Development and Evolutionary Change

Evidence and Mechanisms of Evolution

Reconstructing and Using Phylogenies

Species and Their Formation

Evolution of Genes and Genomes

The History of Life on Earth

Bacteria and Archaea: the Prokaryotic Domains

The Origin and Diversification of Eukaryotes

Plants Without Seeds: From Water to Land

The Evolution of Seed Plants

Fungi: Recyclers, Pathogens, Parasites, and Plant Partners

Animal Origins and the Evolution of Body Plans

Protostome Animals

Deuterostome Animals

The Plant Body

Transport in Plants

Plant Nutrition

Regulation of Plant Growth

Reproduction in Flowering Plants

Plant Responses to Environmental Challenges

Physiology, Homeostasis, and Temperature Regulation

Animal Hormones

Immunology: Animal Defense Systems

Animal Development

Neurons and Nervous Systems

Sensory Systems

The Mammalian Nervous System: Structure and Higher Function

Musculoskeletal Systems

Gas Exchange in Animals

Circulatory Systems

Nutrition, Digestion, and Absorption

Salt and Water Balance and Nitrogen

Animal Behavior

Ecology and the Distribution of Life

Population Ecology

Species Interaction and Coevolution

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Ecosystems and Global Ecology

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Filters

The two pituitary gonadotropins that coordinate female reproductive events are _ and _.

A primary oocyte is _ and arrested in _ of meiosis.