Question 1

If the sperm and egg are of the same species, ______, a species-specific protein located on the _______, adheres to receptors located on the egg's ________.

Accepted Answer

A)  acrosomin; acrosome; jelly coat 
B)  bindin; acrosome; vitelline membrane 
C)  bindin; acrosome; zona pellucida 
D)  acrosomin; zona pellucida, jelly coat 
E)  bindin, head, vitelline membrane 
A)  acrosomin; acrosome; jelly coat 
B)  bindin; acrosome; vitelline membrane 
C)  bindin; acrosome; zona pellucida 
D)  acrosomin; zona pellucida, jelly coat 
E)  bindin, head, vitelline membrane B

Question 2

The first breath of the neonate is initiated by the

Accepted Answer

A)  passage through the birth canal. 
B)  removal of amniotic fluid from its mouth. 
C)  accumulation of carbon dioxide in the blood. 
D)  detection of light by its visual receptors. 
E)  increase in oxygen concentration in the lungs. 
A)  passage through the birth canal. 
B)  removal of amniotic fluid from its mouth. 
C)  accumulation of carbon dioxide in the blood. 
D)  detection of light by its visual receptors. 
E)  increase in oxygen concentration in the lungs. C

Question 3

Match between columns
                        Premises: A three-layered embryo

Accepted Answer

The Answer of Stage of organogenesis and Morula and Blastula is...

Question 4

Which structure do cells that make up the upper layer (the epiblast) and migrate toward the midline form?

Accepted Answer

A)  Archenteron 
B)  Primitive streak 
C)  Chorion 
D)  Primitive groove 
E)  Notochord 
A)  Archenteron 
B)  Primitive streak 
C)  Chorion 
D)  Primitive groove 
E)  Notochord

Question 5

When a human embryo is implanted in the uterus, the embryo is in the morula stage.

Accepted Answer

A) True 
 B)False

Question 6

A teratogen is a drug that

Accepted Answer

A)  increases fertility. 
B)  prevents fertilization. 
C)  prevents implantation of the embryo in the endometrium. 
D)  induces labor. 
E)  interferes with morphogenesis. 
A)  increases fertility. 
B)  prevents fertilization. 
C)  prevents implantation of the embryo in the endometrium. 
D)  induces labor. 
E)  interferes with morphogenesis.

Question 7

What is the correct sequence through which early development proceeds?

Accepted Answer

A)  morula → zygote → gastrula → blastula 
B)  zygote → blastula → morula → gastrula 
C)  zygote → blastula → gastrula → morula 
D)  zygote → gastrula → blastula → morula 
E)  zygote → morula → blastula → gastrula 
A)  morula → zygote → gastrula → blastula 
B)  zygote → blastula → morula → gastrula 
C)  zygote → blastula → gastrula → morula 
D)  zygote → gastrula → blastula → morula 
E)  zygote → morula → blastula → gastrula

Question 8

Gastrulation is the process by which an embryo becomes three-layered.

Accepted Answer

A) True 
 B)False

Question 9

The eggs of birds and reptiles are telolecithal.

Accepted Answer

A) True 
 B)False

Question 10

Match between columns
                        Premises: In mammals, this is called a blastocyst

Accepted Answer

The Answer of Stage of organogenesis and Blastula and Morula is...

Question 11

Describe two adaptations that the neonate must undergo immediately following birth.

Accepted Answer

Concepts to Consider: The neonate must b

Question 12

Animal growth primarily occurs by an increase in the

Accepted Answer

A)  number of tissues and organs. 
B)  number of cells. 
C)  types of cells produced. 
D)  number of cell functions. 
E)  number of cell shapes. 
A)  number of tissues and organs. 
B)  number of cells. 
C)  types of cells produced. 
D)  number of cell functions. 
E)  number of cell shapes.

Question 13

Which of the following are incorrectly paired?

Accepted Answer

A)  Heroin−premature births and low birth weight 
B)  Thalidomide−babies born without toes 
C)  Accutane−associated with malformations of the brain 
D)  Cocaine−constricts fetal arteries, which leads to retarded development 
E)  Cigarette smoking−an addiction to nicotine 
A)  Heroin−premature births and low birth weight 
B)  Thalidomide−babies born without toes 
C)  Accutane−associated with malformations of the brain 
D)  Cocaine−constricts fetal arteries, which leads to retarded development 
E)  Cigarette smoking−an addiction to nicotine

Question 14

The principle of nuclear equivalence states that

Accepted Answer

A)  developing cells become specialized to carry out specific functions. 
B)  developing cells follow particular differentiation pathways. 
C)  there is no loss of genetic information through determination or differentiation. 
D)  differential gene expression is responsible for variation among cells. 
E)  nuclear changes can take place during the entire life of an individual. 
A)  developing cells become specialized to carry out specific functions. 
B)  developing cells follow particular differentiation pathways. 
C)  there is no loss of genetic information through determination or differentiation. 
D)  differential gene expression is responsible for variation among cells. 
E)  nuclear changes can take place during the entire life of an individual.

Question 15

The embryo becomes implanted in the endometrium of the uterus due to

Accepted Answer

A)  special receptors on the endometrium to which the blastocyst attaches. 
B)  enzymes secreted by the trophoblast, which erode an area of the endometrium for entry of the embryo. 
C)  special phagocytic cells in the endometrium, which engulf the embryo. 
D)  the sticky coat of the zona pellucida, which adheres to the endometrium. 
E)  the action of hCG secreted by the embryo. 
A)  special receptors on the endometrium to which the blastocyst attaches. 
B)  enzymes secreted by the trophoblast, which erode an area of the endometrium for entry of the embryo. 
C)  special phagocytic cells in the endometrium, which engulf the embryo. 
D)  the sticky coat of the zona pellucida, which adheres to the endometrium. 
E)  the action of hCG secreted by the embryo.

Question 16

Cell division of the blastula is restricted to which of the following?

Accepted Answer

A)  Animal pole 
B)  Vegetal pole 
C)  Blastomere 
D)  Blastodisc 
E)  Blastocoel 
A)  Animal pole 
B)  Vegetal pole 
C)  Blastomere 
D)  Blastodisc 
E)  Blastocoel

Question 17

Place the following in developmental order beginning with the earliest event.
(1) Limb buds appear
(2) Face begins to look human
(3) Muscles differentiate
(4) Downy hair covers the fetus
(5) Sex can be determined by external inspection

Accepted Answer

A)  3, 1, 2, 4, 5 
B)  1, 3, 4, 2, 5 
C)  1, 3, 2, 5, 4 
D)  1, 2, 3, 4, 5 
E)  1, 3, 5, 2, 4 
A)  3, 1, 2, 4, 5 
B)  1, 3, 4, 2, 5 
C)  1, 3, 2, 5, 4 
D)  1, 2, 3, 4, 5 
E)  1, 3, 5, 2, 4

Question 18

Which statement about early embryonic development in humans is FALSE?

Accepted Answer

A)  The embryo is moved along the oviduct by ciliary action and muscular contraction. 
B)  The embryo develops through the blastula stage while floating free in the uterus. 
C)  The embryo enters the uterus about 24 hours after fertilization. 
D)  Early division of the embryo occurs in the oviduct. 
E)  Implantation of the embryo occurs about seven days after fertilization. 
A)  The embryo is moved along the oviduct by ciliary action and muscular contraction. 
B)  The embryo develops through the blastula stage while floating free in the uterus. 
C)  The embryo enters the uterus about 24 hours after fertilization. 
D)  Early division of the embryo occurs in the oviduct. 
E)  Implantation of the embryo occurs about seven days after fertilization.

Question 19

In the amphibian embryo, the first cleavage bisects the gray crescent.

Accepted Answer

A) True 
 B)False

Question 20

Match between columns
                        Premises: Makes food available for embryo

Accepted Answer

The Answer of Yolk sac and Chorion and Allantois and is...

Exam 51: Animal Development

If the sperm and egg are of the same species, ______, a species-specific protein located on the _______, adheres to receptors located on the egg's ________.

The first breath of the neonate is initiated by the

Which structure do cells that make up the upper layer (the epiblast) and migrate toward the midline form?

When a human embryo is implanted in the uterus, the embryo is in the morula stage.

A teratogen is a drug that

What is the correct sequence through which early development proceeds?

Gastrulation is the process by which an embryo becomes three-layered.

The eggs of birds and reptiles are telolecithal.

Describe two adaptations that the neonate must undergo immediately following birth.

Animal growth primarily occurs by an increase in the

Which of the following are incorrectly paired?

The principle of nuclear equivalence states that

The embryo becomes implanted in the endometrium of the uterus due to

Cell division of the blastula is restricted to which of the following?

Place the following in developmental order beginning with the earliest event. (1) Limb buds appear (2) Face begins to look human (3) Muscles differentiate (4) Downy hair covers the fetus (5) Sex can be determined by external inspection

Which statement about early embryonic development in humans is FALSE?

In the amphibian embryo, the first cleavage bisects the gray crescent.

A View of Life

Atoms and Molecules: the Chemical Basis of Life

The Chemistry of Life: Organic Compounds

Organization of the Cell

Biological Membranes

Cell Communication

Energy and Metabolism

How Cells Make Atp: Energy-Releasing Pathways

Photosynthesis: Capturing Light Energy

Chromosomes, Mitosis, and Meiosis

The Basic Principles of Heredity

DNA: The Carrier of Genetic Information

Gene Expression

Gene Regulation

DNA Technology and Genomics

Human Genetics and the Human Genome

Developmental Genetics

Introduction to Darwinian Evolution

Evolutionary Change in Populations

Speciation and Macroevolution

The Origin and Evolutionary History of Life

The Evolution of Primates

Understanding Diversity: Systematics

Viruses and Subviral Agents

Bacteria and Archaea

Protists

Seedless Plants

Seed Plants

The Fungi

An Introduction to Animal Diversity

Sponges, Cnidarians, Ctenophores, and Protostomes

The Deuterostomes

Plant Structure, Growth, and Development

Leaf Structure and Function

Stem Structure and Transport

Roots and Mineral Nutrition

Reproduction in Flowering Plants

Plant Developmental Responses to External and Internal Signals

Animal Structure and Function: an Introduction

Protection, Support, and Movement

Neural Signaling

Neural Regulation

Sensory Systems

Internal Transport

The Immune System: Internal Defense

Gas Exchange

Processing Food and Nutrition

Osmoregulation and Disposal of Metabolic Wastes

Endocrine Regulation

Reproduction

Animal Behavior

Introduction to Ecology: Population Ecology

Community Ecology

Ecosystems and the Biosphere

Ecology and the Geography of Life

Biological Diversity and Conservation Biology

Filters

If the sperm and egg are of the same species, __, a species-specific protein located on the _, adheres to receptors located on the egg's ______.