Question 1

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

Accepted Answer

A)  specialized sperm-transfer device produced only by males. 
B)  shared pathway for the digestive, excretory, and reproductive systems. 
C)  region bordered by the labia minora and clitoris in females. 
D)  source of nutrients for developing sperm in the testes. 
E)  gland that secretes mucus to lubricate the vaginal opening. 
A)  specialized sperm-transfer device produced only by males. 
B)  shared pathway for the digestive, excretory, and reproductive systems. 
C)  region bordered by the labia minora and clitoris in females. 
D)  source of nutrients for developing sperm in the testes. 
E)  gland that secretes mucus to lubricate the vaginal opening.

Question 2

Which of the following correctly displays the sequence of developmental milestones?

Accepted Answer

A)  blastula → gastrula → cleavage 
B)  blastula → cleavage → gastrula 
C)  cleavage → gastrula → blastula 
D)  cleavage → blastula → gastrula 
E)  gastrula → blastula → cleavage 
A)  blastula → gastrula → cleavage 
B)  blastula → cleavage → gastrula 
C)  cleavage → gastrula → blastula 
D)  cleavage → blastula → gastrula 
E)  gastrula → blastula → cleavage

Question 3

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 4

Refer to the following figure, which diagrams the reproductive anatomy of the human female, to answer the following questions.
   Figure 36.1
-In Figure 36.1, 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

The cortical reaction of sea urchin eggs functions directly in

Accepted Answer

A)  the formation of a fertilization envelope. 
B)  the production of a fast block to polyspermy. 
C)  the release of hydrolytic enzymes from the sperm. 
D)  the generation of an electrical impulse by the egg. 
E)  the fusion of egg and sperm nuclei. 
A)  the formation of a fertilization envelope. 
B)  the production of a fast block to polyspermy. 
C)  the release of hydrolytic enzymes from the sperm. 
D)  the generation of an electrical impulse by the egg. 
E)  the fusion of egg and sperm nuclei.

Question 6

In mammals, the nuclei resulting from the union of the sperm and the egg are first truly diploid at the end of the

Accepted Answer

A)  acrosomal reaction. 
B)  completion of spermatogenesis. 
C)  initial cleavage. 
D)  activation of the egg. 
E)  completion of gastrulation. 
A)  acrosomal reaction. 
B)  completion of spermatogenesis. 
C)  initial cleavage. 
D)  activation of the egg. 
E)  completion of gastrulation.

Question 7

Testosterone is synthesized primarily by the

Accepted Answer

A)  sperm cells. 
B)  hypothalamus. 
C)  Leydig cells. 
D)  anterior pituitary gland. 
E)  seminiferous tubules. 
A)  sperm cells. 
B)  hypothalamus. 
C)  Leydig cells. 
D)  anterior pituitary gland. 
E)  seminiferous tubules.

Question 8

Uterine implantation due to enzymatic digestion of the endometrium is initiated by the

Accepted Answer

A)  inner cell mass. 
B)  endoderm. 
C)  chorion. 
D)  mesoderm. 
E)  trophoblast. 
A)  inner cell mass. 
B)  endoderm. 
C)  chorion. 
D)  mesoderm. 
E)  trophoblast.

Question 9

Females of many insect species, including honeybee queens, can store gametes shed by their mating partners in

Accepted Answer

A)  their nests. 
B)  the abdominal tract. 
C)  the cloaca. 
D)  the uterus. 
E)  the spermatheca. 
A)  their nests. 
B)  the abdominal tract. 
C)  the cloaca. 
D)  the uterus. 
E)  the spermatheca.

Exam 36: Reproduction and Development

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

Which of the following correctly displays the sequence of developmental milestones?

For normal human fertilization to occur

Refer to the following figure, which diagrams the reproductive anatomy of the human female, to answer the following questions. Figure 36.1 -In Figure 36.1, which letter points to the endometrium?

The cortical reaction of sea urchin eggs functions directly in

In mammals, the nuclei resulting from the union of the sperm and the egg are first truly diploid at the end of the

Testosterone is synthesized primarily by the

Uterine implantation due to enzymatic digestion of the endometrium is initiated by the

Females of many insect species, including honeybee queens, can store gametes shed by their mating partners in

Introduction: Evolution and the Foundations of Biology

The Chemical Context of Life

Carbon and the Molecular Diversity of Life

A Tour of the Cell

Membrane Transport and Cell Signaling

An Introduction to Metabolism

Cellular Respiration and Fermentation

Photosynthesis

The Cell Cycle

Meiosis and Sexual Life Cycles

Mendel and the Gene Idea

The Chromosomal Basis of Inheritance

The Molecular Basis of Inheritance

Gene Expression: From Gene to Protein

Regulation of Gene Expression

Development, Stem Cells, and Cancer

Viruses

Genomes and Their Evolution

Descent With Modification

Phylogeny

The Evolution of Populations

The Origin of Species

Broad Patterns of Evolution

Early Life and the Diversification of Prokaryotes

The Origin and Diversification of Eukaryotes

The Colonization of Land by Plants and Fungi

The Rise of Animal Diversity

Plant Structure and Growth

Resource Acquisition, Nutrition, and Transport in Vascular Plants

Reproduction and Domestication of Flowering Plants

Plant Responses to Internal and External Signals

Homeostasis and Endocrine Signaling

Animal Nutrition

Circulation and Gas Exchange

The Immune System

Neurons, Synapses, and Signaling

Nervous and Sensory Systems

Motor Mechanisms and Behavior

Population Ecology and the Distribution of Organisms

Species Interactions

Ecosystems and Energy

Global Ecology and Conservation Biology

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