Question 1

Which of the following patterns of reproduction are found only among invertebrate animals?

Accepted Answer

A) sexual and asexual reproduction 
B) external and internal fertilization 
C) hermaphroditism and parthenogenesis 
D) pheromonal and hormonal coordination 
E) fission and budding 
A) sexual and asexual reproduction 
B) external and internal fertilization 
C) hermaphroditism and parthenogenesis 
D) pheromonal and hormonal coordination 
E) fission and budding

Question 2

Among mammals,the male and female genital structures that consist mostly of erectile tissue include the

Accepted Answer

A) penis and clitoris. 
B) vas deferens and oviduct. 
C) testes and ovaries. 
D) seminiferous tubules and hymen. 
E) prostate and ovaries. 
A) penis and clitoris. 
B) vas deferens and oviduct. 
C) testes and ovaries. 
D) seminiferous tubules and hymen. 
E) prostate and ovaries.

Question 3

The moment of orgasm is characterized by

Accepted Answer

A) the ovulation of the oocyte from the ovary. 
B) the release of sperm from the seminiferous tubules. 
C) rhythmic contraction of many parts of the reproductive system. 
D) increased synthesis and release of ovarian steroid hormones. 
E) increased synthesis and release of testicular steroid hormones. 
A) the ovulation of the oocyte from the ovary. 
B) the release of sperm from the seminiferous tubules. 
C) rhythmic contraction of many parts of the reproductive system. 
D) increased synthesis and release of ovarian steroid hormones. 
E) increased synthesis and release of testicular steroid hormones.

Question 4

Use the following information for the next few questions.
The manager of a large commercial aquaculture station wants to bring silver carp (Hypophthalmichthys molitrix)into Canada for use in his facility.Many government organizations are worried about the carp escaping into local waterways and devastating native flora and fauna.
-What are the side effects of hormonal sterilization in male fish?
I.production of egg proteins
II.impaired testes development
III.impaired sperm development

Accepted Answer

A) I only 
B) II only 
C) I, II, and III 
D) I and II 
E) I and III 
A) I only 
B) II only 
C) I, II, and III 
D) I and II 
E) I and III

Question 5

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 6

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 7

For which of the following is the number the same in spermatogenesis and oogenesis?

Accepted Answer

A) interruptions in meiotic divisions 
B) functional gametes produced by meiosis 
C) meiotic divisions required to produce each gamete 
D) gametes produced in a given time period 
E) different cell types produced by meiosis 
A) interruptions in meiotic divisions 
B) functional gametes produced by meiosis 
C) meiotic divisions required to produce each gamete 
D) gametes produced in a given time period 
E) different cell types produced by meiosis

Question 8

In excreted urine,a reliable "marker" that a pregnancy has initiated is

Accepted Answer

A) progesterone. 
B) estrogen. 
C) follicle-stimulating hormone. 
D) chorionic gonadotropin. 
E) hypothalamic-releasing hormones. 
A) progesterone. 
B) estrogen. 
C) follicle-stimulating hormone. 
D) chorionic gonadotropin. 
E) hypothalamic-releasing hormones.

Question 9

All individuals of a particular species of whiptail lizards are females.Their reproductive efforts depend on

Accepted Answer

A) fertilization of their eggs by males of other lizard species. 
B) gonadal structures that only undergo mitosis. 
C) courtship and mating behaviours typical during sexual reproduction. 
D) budding prior to the development of a sexual phenotype. 
E) fragmentation via autolysis. 
A) fertilization of their eggs by males of other lizard species. 
B) gonadal structures that only undergo mitosis. 
C) courtship and mating behaviours typical during sexual reproduction. 
D) budding prior to the development of a sexual phenotype. 
E) fragmentation via autolysis.

Question 10

An advantage of asexual reproduction is that

Accepted Answer

A) asexual reproduction allows the species to endure long periods of unstable environmental conditions. 
B) asexual reproduction enhances genetic variability in the species. 
C) asexual reproduction enables the species to rapidly colonize habitats that are favourable to that species. 
D) asexual reproduction produces offspring that respond effectively to new pathogens. 
E) asexual reproduction allows a species to easily rid itself of harmful mutations. 
A) asexual reproduction allows the species to endure long periods of unstable environmental conditions. 
B) asexual reproduction enhances genetic variability in the species. 
C) asexual reproduction enables the species to rapidly colonize habitats that are favourable to that species. 
D) asexual reproduction produces offspring that respond effectively to new pathogens. 
E) asexual reproduction allows a species to easily rid itself of harmful mutations.

Question 11

Sperm cells are stored within human males in the

Accepted Answer

A) urethra. 
B) prostate. 
C) epididymis. 
D) seminal vesicles. 
E) bulbourethral gland. 
A) urethra. 
B) prostate. 
C) epididymis. 
D) seminal vesicles. 
E) bulbourethral gland.

Question 12

If the LH surge is inhibited during the ovarian cycle,which of the following events would not occur?

Accepted Answer

A) release of FSH from the pituitary gland 
B) production of estradiol by the follicle 
C) maturation of the primary follicle 
D) ovulation of the secondary oocyte 
E) release of GnRH from the hypothalamus 
A) release of FSH from the pituitary gland 
B) production of estradiol by the follicle 
C) maturation of the primary follicle 
D) ovulation of the secondary oocyte 
E) release of GnRH from the hypothalamus

Question 13

When female fruit flies mate with two different males on the same day

Accepted Answer

A) the first male's sperm fertilizes all of the eggs. 
B) the first male's sperm fertilizes most of the eggs. 
C) the second male's sperm fertilizes most of the eggs. 
D) the first and second males fertilize equal numbers of eggs. 
E) none of the eggs become fertilized. 
A) the first male's sperm fertilizes all of the eggs. 
B) the first male's sperm fertilizes most of the eggs. 
C) the second male's sperm fertilizes most of the eggs. 
D) the first and second males fertilize equal numbers of eggs. 
E) none of the eggs become fertilized.

Question 14

Which of the following is not properly paired?

Accepted Answer

A) seminiferous tubule-cervix 
B) Sertoli cells-follicle cells 
C) testosterone-estradiol 
D) scrotum-labia majora 
E) vas deferens-oviduct 
A) seminiferous tubule-cervix 
B) Sertoli cells-follicle cells 
C) testosterone-estradiol 
D) scrotum-labia majora 
E) vas deferens-oviduct

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

For normal human fertilization to occur,

Accepted Answer

A) many ova must be released. 
B) the uterus must be enlarged. 
C) only one sperm need penetrate one egg. 
D) secretion of pituitary FSH and LH must decrease. 
E) the secondary oocyte must implant in the uterus. 
A) many ova must be released. 
B) the uterus must be enlarged. 
C) only one sperm need penetrate one egg. 
D) secretion of pituitary FSH and LH must decrease. 
E) the secondary oocyte must implant in the uterus.

Question 17

In which of the following environments would you be most likely to find the greatest number of asexually reproducing invertebrates?

Accepted Answer

A) desert 
B) deep ocean floor 
C) mountainous regions 
D) temperate forest 
E) temperate prairie 
A) desert 
B) deep ocean floor 
C) mountainous regions 
D) temperate forest 
E) temperate prairie

Question 18

The incidence of tubal or ectopic pregnancy can be increased by all of the following conditions except

Accepted Answer

A) scarred oviduct due to a medical procedure. 
B) sexually transmitted infection. 
C) uterine bacterial infection. 
D) cilia damage in Fallopian tubes. 
E) natural vaginal birth. 
A) scarred oviduct due to a medical procedure. 
B) sexually transmitted infection. 
C) uterine bacterial infection. 
D) cilia damage in Fallopian tubes. 
E) natural vaginal birth.

Question 19

For the 10 days following ovulation in a nonpregnant menstrual cycle,the main source of progesterone is the

Accepted Answer

A) adrenal cortex. 
B) anterior pituitary. 
C) corpus luteum. 
D) developing follicle. 
E) placenta. 
A) adrenal cortex. 
B) anterior pituitary. 
C) corpus luteum. 
D) developing follicle. 
E) placenta.

Question 20

Asexual reproduction results in greater reproductive success than does sexual reproduction when

Accepted Answer

A) pathogens are rapidly diversifying. 
B) a species has accumulated numerous deleterious mutations. 
C) there is some potential for rapid overpopulation. 
D) a species is expanding into diverse geographic settings. 
E) a species is in stable and favourable environments. 
A) pathogens are rapidly diversifying. 
B) a species has accumulated numerous deleterious mutations. 
C) there is some potential for rapid overpopulation. 
D) a species is expanding into diverse geographic settings. 
E) a species is in stable and favourable environments.

Exam 46: Animal Reproduction

Which of the following patterns of reproduction are found only among invertebrate animals?

Among mammals,the male and female genital structures that consist mostly of erectile tissue include the

The moment of orgasm is characterized by

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

Human sperm cells first arise in the

For which of the following is the number the same in spermatogenesis and oogenesis?

In excreted urine,a reliable "marker" that a pregnancy has initiated is

All individuals of a particular species of whiptail lizards are females.Their reproductive efforts depend on

An advantage of asexual reproduction is that

Sperm cells are stored within human males in the

If the LH surge is inhibited during the ovarian cycle,which of the following events would not occur?

When female fruit flies mate with two different males on the same day

Which of the following is not properly paired?

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

For normal human fertilization to occur,

In which of the following environments would you be most likely to find the greatest number of asexually reproducing invertebrates?

The incidence of tubal or ectopic pregnancy can be increased by all of the following conditions except

For the 10 days following ovulation in a nonpregnant menstrual cycle,the main source of progesterone is the

Asexual reproduction results in greater reproductive success than does sexual reproduction when

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

Filters