Question 1

FSH stimulates interstitial cells in the testes to produce testosterone.

Accepted Answer

A) True 
 B)False  False

Question 2

Why do FSH levels drop after ovulation?

Accepted Answer

After ovulation, the corpus luteum begins to produce estrogen and progesterone, which inhibits GnRH production by negative feedback, reducing the release of FSH.

Question 3

During an erection, blood pressure in the penis is decreased.

Accepted Answer

A) True 
 B)False  False

Question 4

The only flagellated cells in the human body are

Accepted Answer

A)  primary oocytes. 
B)  sperm. 
C)  Sertoli cells. 
D)  mature ova. 
E)  primary spermatocytes. 
A)  primary oocytes. 
B)  sperm. 
C)  Sertoli cells. 
D)  mature ova. 
E)  primary spermatocytes.

Question 5

Vasectomy and tubal ligation are forms of _ _.

Accepted Answer

The answer of Vasectomy and tubal ligation are forms of...

Question 6

-The increase in size of structure 2 is regulated by

Accepted Answer

A)  FSH. 
B)  inhibin. 
C)  GnRH. 
D)  testosterone. 
E)  progesterone. 
A)  FSH. 
B)  inhibin. 
C)  GnRH. 
D)  testosterone. 
E)  progesterone.

Question 7

A polar body

Accepted Answer

A)  is a discarded set of chromosomes. 
B)  nourishes the egg until it is fertilized. 
C)  is formed at the same time as a primary oocyte. 
D)  can be fertilized by a sperm. 
E)  is a structure found at one pole of a mature egg. 
A)  is a discarded set of chromosomes. 
B)  nourishes the egg until it is fertilized. 
C)  is formed at the same time as a primary oocyte. 
D)  can be fertilized by a sperm. 
E)  is a structure found at one pole of a mature egg.

Question 8

The lower end of the uterus is nearly closed by a ring of connective tissue called the .

Accepted Answer

The answer of The lower end of the uterus is...

Question 9

A single organism that produces both eggs and sperm, and can self- fertilize, is a _.

Accepted Answer

The answer of A single organism that produces both eggs...

Question 10

In men, as testosterone levels increase, LH levels

Accepted Answer

A)  remain the same. 
B)  increase. 
C)  move up or down depending on the point in the cycle. 
D)  decrease. 
A)  remain the same. 
B)  increase. 
C)  move up or down depending on the point in the cycle. 
D)  decrease.

Question 11

The interstitial cells of the testes produce

Accepted Answer

A)  sperm. 
B)  testosterone. 
C)  alkaline mucus. 
D)  FSH. 
E)  LH. 
A)  sperm. 
B)  testosterone. 
C)  alkaline mucus. 
D)  FSH. 
E)  LH.

Question 12

In which respect do spermatogenesis and oogenesis differ?

Accepted Answer

A)  Spermatogenesis occurs in the epididymis, whereas oogenesis occurs in the ovary. 
B)  The number of gametes produced is different. 
C)  The number of chromosomes in gametes is different. 
D)  The number of meiotic divisions is different. 
A)  Spermatogenesis occurs in the epididymis, whereas oogenesis occurs in the ovary. 
B)  The number of gametes produced is different. 
C)  The number of chromosomes in gametes is different. 
D)  The number of meiotic divisions is different.

Question 13

Female salmon build nests in gravel river bottoms to lay eggs, which are then fertilized by male salmon that approach and deposit their sperm over the eggs. This is an example of

Accepted Answer

A)  spawning. 
B)  copulation. 
C)  hermaphrodism. 
D)  internal fertilization. 
E)  parthenogenesis. 
A)  spawning. 
B)  copulation. 
C)  hermaphrodism. 
D)  internal fertilization. 
E)  parthenogenesis.

Question 14

After a vasectomy, the semen produced will not contain

Accepted Answer

A)  enzymes. 
B)  fructose. 
C)  mucus. 
D)  sperm. 
E)  acid- neutralizing fluid. 
A)  enzymes. 
B)  fructose. 
C)  mucus. 
D)  sperm. 
E)  acid- neutralizing fluid.

Question 15

Birth control injections use synthetic to prevent ovulation.

Accepted Answer

The answer of Birth control injections use synthetic to prevent...

Question 16

-To take advantage of ecotourism, a resort is built near a coral reef so that tourists can observe the spawning that occurs shortly after a full moon. As an added benefit, several species of colorful fishes are attracted to the area. Tour boats go out nightly and shine large spotlights to attract the fish. Tourists are enchanted by the display of fishes but have begun to question why spawning among the corals has ceased. What is the probable cause for the lack of spawning?

Accepted Answer

A)  The spotlights are causing the corals to spawn during the day rather than at night. 
B)  The fish are eating the spawn. 
C)  Corals time their spawning by the phase of the moon; spotlights mimic the full moon, so spawning can't occur. 
D)  The tourists are too loud. 
E)  The fish are releasing chemical signals that interfere with spawning among the corals. 
A)  The spotlights are causing the corals to spawn during the day rather than at night. 
B)  The fish are eating the spawn. 
C)  Corals time their spawning by the phase of the moon; spotlights mimic the full moon, so spawning can't occur. 
D)  The tourists are too loud. 
E)  The fish are releasing chemical signals that interfere with spawning among the corals.

Question 17

During the first half of the menstrual cycle, GnRH stimulates the release of FSH, which stimulates the growth of follicle cells to secrete increasing levels of , which then stimulates the release of more GnRH, creating a positive feedback loop.

Accepted Answer

The answer of During the first half of the menstrual...

Question 18

Why are the secretions of the seminal vesicles, prostate glands, and bulbourethral glands necessary for successful reproduction?

Accepted Answer

They activate swimming by the

Question 19

Other than abstinence and sterilization, the most effective method of contraception is the

Accepted Answer

A)  diaphragm. 
B)  contraceptive sponge. 
C)  condom. 
D)  IUD. 
E)  birth control pill. 
A)  diaphragm. 
B)  contraceptive sponge. 
C)  condom. 
D)  IUD. 
E)  birth control pill.

Question 20

Brittle stars can regrow a new arm if an existing one is broken off. This is an example of

Accepted Answer

A)  parthenogenesis. 
B)  regeneration. 
C)  sexual reproduction. 
D)  budding. 
E)  hermaphrodism. 
A)  parthenogenesis. 
B)  regeneration. 
C)  sexual reproduction. 
D)  budding. 
E)  hermaphrodism.

Exam 42: Animal Reproduction

FSH stimulates interstitial cells in the testes to produce testosterone.

Why do FSH levels drop after ovulation?

During an erection, blood pressure in the penis is decreased.

The only flagellated cells in the human body are

Vasectomy and tubal ligation are forms of _ _.

-The increase in size of structure 2 is regulated by

A polar body

The lower end of the uterus is nearly closed by a ring of connective tissue called the .

A single organism that produces both eggs and sperm, and can self- fertilize, is a _.

In men, as testosterone levels increase, LH levels

The interstitial cells of the testes produce

In which respect do spermatogenesis and oogenesis differ?

Female salmon build nests in gravel river bottoms to lay eggs, which are then fertilized by male salmon that approach and deposit their sperm over the eggs. This is an example of

After a vasectomy, the semen produced will not contain

Birth control injections use synthetic to prevent ovulation.

During the first half of the menstrual cycle, GnRH stimulates the release of FSH, which stimulates the growth of follicle cells to secrete increasing levels of , which then stimulates the release of more GnRH, creating a positive feedback loop.

Why are the secretions of the seminal vesicles, prostate glands, and bulbourethral glands necessary for successful reproduction?

Other than abstinence and sterilization, the most effective method of contraception is the

Brittle stars can regrow a new arm if an existing one is broken off. This is an example of

An Introduction to Life on Earth

Atoms, Molecules, and Life

Biological Molecules

Cell Structure and Function

Cell Membrane Structure and Function

Energy Flow in the Life of a Cell

Capturing Solar Energy: Photosynthesis

Harvesting Energy: Glycolysis and Cellular Respiration

Cellular Reproduction

Meiosis: the Basis of Sexual Reproduction

Patterns of Inheritance

Dna: the Molecule of Heredity

Gene Expression and Regulation

Biotechnology

Principles of Evolution

How Populations Evolve

The Origin of Species

The History of Life

Systematics: Seeking Order Amid Diversity

The Diversity of Prokaryotes and Viruses

The Diversity of Protists

The Diversity of Plants

The Diversity of Fungi

Animal Diversity I: Invertebrates

Animal Diversity II: Vertebrates

Animal Behavior

Population Growth and Regulation

Community Interactions

Energy Flow and Nutrient Cycling in Ecosystems

Earths Diverse Ecosystems

Conserving Earths Biodiversity

Homeostasis and the Organization of the Animal Body

Circulation

Respiration

Nutrition and Digestion

The Urinary System

Defenses Against Disease

Chemical Control of the Animal Body: the Endocrine System

The Nervous System

The Senses

Action and Support: the Muscles and Skeleton

Animal Development

Plant Anatomy and Nutrient Transport

Plant Reproduction and Development

Plant Responses to the Environment

Filters