Question 1

Regeneration,the regrowth of lost body parts,normally follows

Accepted Answer

A) all types of asexual reproduction. 
B) all types of sexual reproduction. 
C) fission. 
D) fragmentation. 
E) parthenogenesis. 
A) all types of asexual reproduction. 
B) all types of sexual reproduction. 
C) fission. 
D) fragmentation. 
E) parthenogenesis.

Question 2

Evidence that parthenogenic whiptail lizards are derived from sexually reproducing ancestors includes

Accepted Answer

A) the requirement for male-like behaviours in some females before their partners will ovulate. 
B) the development and then regression of testes prior to sexual maturation. 
C) the observation that all of the offspring are haploid. 
D) dependence on favourable weather conditions for ovulation to occur. 
E) the persistence of a vestigial penis among some of the females. 
A) the requirement for male-like behaviours in some females before their partners will ovulate. 
B) the development and then regression of testes prior to sexual maturation. 
C) the observation that all of the offspring are haploid. 
D) dependence on favourable weather conditions for ovulation to occur. 
E) the persistence of a vestigial penis among some of the females.

Question 3

The primary function of the corpus luteum is to

Accepted Answer

A) nourish and protect the egg cell. 
B) produce prolactin in the alveoli. 
C) maintain progesterone and estrogen synthesis after ovulation has occurred. 
D) stimulate the development of the mammary glands. 
E) support pregnancy in the second and third trimesters. 
A) nourish and protect the egg cell. 
B) produce prolactin in the alveoli. 
C) maintain progesterone and estrogen synthesis after ovulation has occurred. 
D) stimulate the development of the mammary glands. 
E) support pregnancy in the second and third trimesters.

Question 4

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 endometrium?

Accepted Answer

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

Question 5

Like many other fishes,bluehead wrasses utilize harem mating as they reproduce sexually.However,unlike most fishes,

Accepted Answer

A) they are simultaneous hermaphrodites. 
B) they function without any signalling by steroid hormones. 
C) they undergo a prolonged diapause during low tide. 
D) their offspring can be either haploid or diploid. 
E) large females morph into reproductively competent males. 
A) they are simultaneous hermaphrodites. 
B) they function without any signalling by steroid hormones. 
C) they undergo a prolonged diapause during low tide. 
D) their offspring can be either haploid or diploid. 
E) large females morph into reproductively competent males.

Question 6

A primary response by the Leydig cells in the testes to the presence of luteinizing hormone is an increase in the synthesis and secretion of

Accepted Answer

A) inhibin. 
B) testosterone. 
C) oxytocin. 
D) prolactin. 
E) progesterone. 
A) inhibin. 
B) testosterone. 
C) oxytocin. 
D) prolactin. 
E) progesterone.

Question 7

In humans,the follicular cells that remain behind in the ovary following ovulation become

Accepted Answer

A) the ovarian endometrium that is shed at the time of the menses. 
B) a steroid-hormone synthesizing structure called the corpus luteum. 
C) the thickened portion of the uterine wall. 
D) swept into the fallopian tube. 
E) the placenta, which secretes cervical mucus. 
A) the ovarian endometrium that is shed at the time of the menses. 
B) a steroid-hormone synthesizing structure called the corpus luteum. 
C) the thickened portion of the uterine wall. 
D) swept into the fallopian tube. 
E) the placenta, which secretes cervical mucus.

Question 8

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 9

Peaks of LH and FSH production occur during

Accepted Answer

A) the menstrual flow phase of the uterine cycle. 
B) the beginning of the follicular phase of the ovarian cycle. 
C) the period just before ovulation. 
D) the end of the luteal phase of the ovarian cycle. 
E) the secretory phase of the menstrual cycle. 
A) the menstrual flow phase of the uterine cycle. 
B) the beginning of the follicular phase of the ovarian cycle. 
C) the period just before ovulation. 
D) the end of the luteal phase of the ovarian cycle. 
E) the secretory phase of the menstrual cycle.

Question 10

Among these contraception methods,the highest risk of accidental pregnancy accompanies

Accepted Answer

A) the use of a diaphragm. 
B) the use of a condom. 
C) the practice of coitus interruptus. 
D) a verified vasectomy. 
E) the practice of the "rhythm method." 
A) the use of a diaphragm. 
B) the use of a condom. 
C) the practice of coitus interruptus. 
D) a verified vasectomy. 
E) the practice of the "rhythm method."

Question 11

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 12

Which of the following is a true statement?

Accepted Answer

A) All mammals have menstrual cycles. 
B) The endometrial lining is shed in menstrual cycles but reabsorbed in estrous cycles. 
C) Estrous cycles are more frequent than menstrual cycles. 
D) Estrous cycles are not controlled by hormones. 
E) Ovulation occurs before the endometrium thickens in estrous cycles. 
A) All mammals have menstrual cycles. 
B) The endometrial lining is shed in menstrual cycles but reabsorbed in estrous cycles. 
C) Estrous cycles are more frequent than menstrual cycles. 
D) Estrous cycles are not controlled by hormones. 
E) Ovulation occurs before the endometrium thickens in estrous cycles.

Question 13

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 14

An oocyte released from a human ovary enters the oviduct as a result of

Accepted Answer

A) the beating action of the flagellum on the oocyte. 
B) the force of the follicular ejection directing the oocyte into the oviduct. 
C) the wavelike beating of cilia lining the oviduct. 
D) movement of the oocyte through the pulsating uterus into the oviduct. 
E) peristaltic contraction of ovarian muscles. 
A) the beating action of the flagellum on the oocyte. 
B) the force of the follicular ejection directing the oocyte into the oviduct. 
C) the wavelike beating of cilia lining the oviduct. 
D) movement of the oocyte through the pulsating uterus into the oviduct. 
E) peristaltic contraction of ovarian muscles.

Question 15

The secretion of follicle-stimulating hormone from the anterior pituitary gland is reduced by

Accepted Answer

A) inhibin. 
B) luteinizing hormone. 
C) oxytocin. 
D) prolactin. 
E) vasopressin. 
A) inhibin. 
B) luteinizing hormone. 
C) oxytocin. 
D) prolactin. 
E) vasopressin.

Question 16

In close comparisons,external fertilization often yields more offspring than does internal fertilization.However,internal fertilization offers the advantage that

Accepted Answer

A) it is the only way to ensure the survival of the species. 
B) it requires less time and energy to be devoted to reproduction. 
C) the smaller number of offspring produced often receive a greater amount of parental investment. 
D) it permits the most rapid population increase. 
E) it requires expression of fewer genes and maximizes genetic stability. 
A) it is the only way to ensure the survival of the species. 
B) it requires less time and energy to be devoted to reproduction. 
C) the smaller number of offspring produced often receive a greater amount of parental investment. 
D) it permits the most rapid population increase. 
E) it requires expression of fewer genes and maximizes genetic stability.

Question 17

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 urethra?

Accepted Answer

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

Question 18

The hypothalamic hormone that stimulates hormone secretion by the anterior pituitary gland is

Accepted Answer

A) LH. 
B) FSH. 
C) inhibin. 
D) GnRH. 
E) estradiol. 
A) LH. 
B) FSH. 
C) inhibin. 
D) GnRH. 
E) estradiol.

Question 19

Which of the following correctly describes a difference between spermatogenesis and oogenesis?

Accepted Answer

A) Spermatogenesis results in four mature sperm cells, while oogenesis results in one mature egg cell. 
B) Spermatogenesis results in one mature sperm cell, while oogenesis results in four mature egg cells. 
C) In spermatogenesis, mitosis occurs twice and meiosis once, while in oogenesis, mitosis occurs once and meiosis twice. 
D) Spermatogenesis results in four mature sperm cells, while oogenesis results in one mature egg cell. In spermatogenesis, mitosis occurs twice and meiosis once, while in oogenesis, mitosis occurs once and meiosis twice. 
E) Spermatogenesis results in two mature sperm cells, while oogenesis results in one mature egg cell. 
A) Spermatogenesis results in four mature sperm cells, while oogenesis results in one mature egg cell. 
B) Spermatogenesis results in one mature sperm cell, while oogenesis results in four mature egg cells. 
C) In spermatogenesis, mitosis occurs twice and meiosis once, while in oogenesis, mitosis occurs once and meiosis twice. 
D) Spermatogenesis results in four mature sperm cells, while oogenesis results in one mature egg cell. In spermatogenesis, mitosis occurs twice and meiosis once, while in oogenesis, mitosis occurs once and meiosis twice. 
E) Spermatogenesis results in two mature sperm cells, while oogenesis results in one mature egg cell.

Question 20

The surgical removal of the seminal vesicles would likely

Accepted Answer

A) cause sterility because sperm would not be produced. 
B) cause sterility because sperm would not be able to exit the body. 
C) greatly reduce the volume of semen. 
D) enhance the fertilization potency of sperm in the uterus. 
E) cause the testes to migrate back into the abdominal cavity. 
A) cause sterility because sperm would not be produced. 
B) cause sterility because sperm would not be able to exit the body. 
C) greatly reduce the volume of semen. 
D) enhance the fertilization potency of sperm in the uterus. 
E) cause the testes to migrate back into the abdominal cavity.

Exam 46: Animal Reproduction

Regeneration,the regrowth of lost body parts,normally follows

Evidence that parthenogenic whiptail lizards are derived from sexually reproducing ancestors includes

The primary function of the corpus luteum is to

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 endometrium?

Like many other fishes,bluehead wrasses utilize harem mating as they reproduce sexually.However,unlike most fishes,

A primary response by the Leydig cells in the testes to the presence of luteinizing hormone is an increase in the synthesis and secretion of

In humans,the follicular cells that remain behind in the ovary following ovulation become

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

Peaks of LH and FSH production occur during

Among these contraception methods,the highest risk of accidental pregnancy accompanies

The hypothalamic hormone that triggers the secretion of FSH is

Which of the following is a true statement?

During human heterosexual (mutual)excitement,vasocongestion

An oocyte released from a human ovary enters the oviduct as a result of

The secretion of follicle-stimulating hormone from the anterior pituitary gland is reduced by

In close comparisons,external fertilization often yields more offspring than does internal fertilization.However,internal fertilization offers the advantage that

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 urethra?

The hypothalamic hormone that stimulates hormone secretion by the anterior pituitary gland is

Which of the following correctly describes a difference between spermatogenesis and oogenesis?

The surgical removal of the seminal vesicles would likely

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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