Question 1

In which of these animals is external fertilization most common?

Accepted Answer

A)  those living on mountains 
B)  those living in oceans 
C)  those living in forests 
D)  those living on prairies 
A)  those living on mountains 
B)  those living in oceans 
C)  those living in forests 
D)  those living on prairies

Question 2

Identify each labelled part of the illustration.  
-rectum

Accepted Answer

The answer of Identify each labelled part of the illustration....

Question 3

Match each term to its definition.
-morula

Accepted Answer

A) fluid-filled cavity within the blastomere 
B) stage in which an embryo has three tissue layers 
C) solid ball of blastomeres 
D) opening that eventually becomes the anus 
E) process that involves an increase in number of cells, but not an increase in mass
F)early stage in formation of the nervous system
G)second stage of cleavage; a formed hollow cavity 
A) fluid-filled cavity within the blastomere 
B) stage in which an embryo has three tissue layers 
C) solid ball of blastomeres 
D) opening that eventually becomes the anus 
E) process that involves an increase in number of cells, but not an increase in mass
F)early stage in formation of the nervous system
G)second stage of cleavage; a formed hollow cavity

Question 4

Put the following mechanisms of development in the order in which they occur.
-third mechanism

Accepted Answer

A) cell movements 
B) determination 
C) differentiation 
D) induction 
E) mitotic cell divisions
F)selective cell adhesions 
A) cell movements 
B) determination 
C) differentiation 
D) induction 
E) mitotic cell divisions
F)selective cell adhesions

Question 5

All mammals except the metatherians are viviparous.

Accepted Answer

A) True 
 B)False

Question 6

The thin flap of tissue that partially covers the opening of the vagina is called the hymen.

Accepted Answer

A) True 
 B)False

Question 7

Figure 44-1  
-In Figure 44-1, which numbers refer to the structures included in the vulva?

Accepted Answer

A)  5 and 6 only 
B)  5 and 8 only 
C)  6 and 7 only 
D)  7 and 8 only 
A)  5 and 6 only 
B)  5 and 8 only 
C)  6 and 7 only 
D)  7 and 8 only

Question 8

What do somites in mammals become?

Accepted Answer

A)  digestive system components 
B)  skeletal muscle cells 
C)  extra-embryonic membranes 
D)  neurons 
A)  digestive system components 
B)  skeletal muscle cells 
C)  extra-embryonic membranes 
D)  neurons

Question 9

After ovulation, the remaining follicle cells develop into the corpus luteum.

Accepted Answer

A) True 
 B)False

Question 10

Which of these organisms has a pattern of gastrulation that is the most similar to humans?

Accepted Answer

A)  bird 
B)  zebra fish 
C)  sea urchin 
D)  amphibian 
A)  bird 
B)  zebra fish 
C)  sea urchin 
D)  amphibian

Question 11

Chorionic villi eventually become the placenta.

Accepted Answer

A) True 
 B)False

Question 12

Which of the following is one function of the developing follicle?

Accepted Answer

A)  to secrete gonadotropin-releasing hormone 
B)  to stimulate ovulation 
C)  to secrete progesterone 
D)  to secrete estrogens 
A)  to secrete gonadotropin-releasing hormone 
B)  to stimulate ovulation 
C)  to secrete progesterone 
D)  to secrete estrogens

Question 13

Which of these animals do NOT lay eggs?

Accepted Answer

A)  monotremes 
B)  marsupials 
C)  reptiles 
D)  birds 
A)  monotremes 
B)  marsupials 
C)  reptiles 
D)  birds

Question 14

Figure 44-2  
-In Figure 44-2, what structure is indicated by number 6?

Accepted Answer

A)  a primordial follicle 
B)  a mature follicle 
C)  a mature germ cell 
D)  a primordial germ cell 
A)  a primordial follicle 
B)  a mature follicle 
C)  a mature germ cell 
D)  a primordial germ cell

Question 15

On which day of a 28-day ovarian cycle does ovulation typically occur?

Accepted Answer

A)  day 1 
B)  day 7 
C)  day 14 
D)  day 28 
A)  day 1 
B)  day 7 
C)  day 14 
D)  day 28

Question 16

Figure 44-1  
-In Figure 44-1, which number refers to the urinary bladder?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

Question 17

Figure 44-3  
-In Figure 44-3, what number indicates a cell that is a secondary spermatocyte?

Accepted Answer

A)  6 
B)  5 
C)  4 
D)  3 
A)  6 
B)  5 
C)  4 
D)  3

Question 18

In humans, which of the following happens when the SRY gene of the Y chromosome becomes active at about week 7 of embryo development?

Accepted Answer

A)  Both the Müllerian and the Wolffian ducts develop into female reproductive structures. 
B)  The Müllerian ducts develop into male reproductive structures, and the Wolffian ducts disappear. 
C)  The Müllerian ducts disappear, and the Wolffian ducts develop into male reproductive structures. 
D)  Both the Müllerian and the Wolffian ducts develop into male reproductive structures. 
A)  Both the Müllerian and the Wolffian ducts develop into female reproductive structures. 
B)  The Müllerian ducts develop into male reproductive structures, and the Wolffian ducts disappear. 
C)  The Müllerian ducts disappear, and the Wolffian ducts develop into male reproductive structures. 
D)  Both the Müllerian and the Wolffian ducts develop into male reproductive structures.

Question 19

Match each term to its definition.
-cleavage

Accepted Answer

A) fluid-filled cavity within the blastomere 
B) stage in which an embryo has three tissue layers 
C) solid ball of blastomeres 
D) opening that eventually becomes the anus 
E) process that involves an increase in number of cells, but not an increase in mass
F)early stage in formation of the nervous system
G)second stage of cleavage; a formed hollow cavity 
A) fluid-filled cavity within the blastomere 
B) stage in which an embryo has three tissue layers 
C) solid ball of blastomeres 
D) opening that eventually becomes the anus 
E) process that involves an increase in number of cells, but not an increase in mass
F)early stage in formation of the nervous system
G)second stage of cleavage; a formed hollow cavity

Question 20

Identify each labelled part of the illustration.  
-seminal vesicle

Accepted Answer

The answer of Identify each labelled part of the illustration....

Exam 44: Animal Reproduction

In which of these animals is external fertilization most common?

Identify each labelled part of the illustration. -rectum

Match each term to its definition. -morula

Put the following mechanisms of development in the order in which they occur. -third mechanism

All mammals except the metatherians are viviparous.

The thin flap of tissue that partially covers the opening of the vagina is called the hymen.

Figure 44-1 -In Figure 44-1, which numbers refer to the structures included in the vulva?

What do somites in mammals become?

After ovulation, the remaining follicle cells develop into the corpus luteum.

Which of these organisms has a pattern of gastrulation that is the most similar to humans?

Chorionic villi eventually become the placenta.

Which of the following is one function of the developing follicle?

Which of these animals do NOT lay eggs?

Figure 44-2 -In Figure 44-2, what structure is indicated by number 6?

On which day of a 28-day ovarian cycle does ovulation typically occur?

Figure 44-1 -In Figure 44-1, which number refers to the urinary bladder?

Figure 44-3 -In Figure 44-3, what number indicates a cell that is a secondary spermatocyte?

In humans, which of the following happens when the SRY gene of the Y chromosome becomes active at about week 7 of embryo development?

Match each term to its definition. -cleavage

Identify each labelled part of the illustration. -seminal vesicle

Light and Life

The Cell: an Overview

Energy and Enzymes

Cell Membranes and Signaling

Cellular Respiration

Photosynthesis

Cell Cycles

Genetic Recombination

The Chromosomal Basis of Mendelian Inheritance

Genetic Linkage, Sex-Linkage, and Other Non-Mendelian Inheritance Mechanisms

DNA Structure, Replication, and Repair

Gene Structure Expression, and Mutation

Regulation of Gene Expression

Dna Technologies

Genomes

Evolution: the Development of the Theory

Microevolution: Changes Within Populations

Speciation and Macroevolution

Systematics and Phylogenetics: Revealing the Tree of Life

Humans and Evolution

Defining Life and Its Origins

Viruses, Viroids, and Prions: Infectious Biological Particles

Bacteria and Archaea

Protists

Fungi

Plants

Animals

Conservation of Biodiversity

Population Ecology

Species Interactions and Community Ecology

Ecosystems

Animal Behaviour

Organization of the Plant Body

Transport in Plants

Reproduction and Development in Flowering Plants

Plant Nutrition

Plant Signals and Responses to the Environment

Introduction to Animal Organization and Physiology

Animal Nutrition

Gas Exchange: the Respiratory System

Internal Transport: the Circulatory System

Regulation of the Internal Environment: Water, Solutes, and Temperature

Control of Animal Processes: Endocrine Control

Control of Animal Processes: Neural Control

Muscles, Skeletons, and Body Movements

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