Question 1

Compare and contrast the roles of cell division and morphogenesis in the development of an animal.

Accepted Answer

Cell division results in an increasing n

Question 2

The trophoblast secretes ______ that signals the corpus luteum that pregnancy has begun.

Accepted Answer

A)  estrogen. 
B)  a gray crescent. 
C)  progesterone. 
D)  hCG. 
E)  an enzyme. 
A)  estrogen. 
B)  a gray crescent. 
C)  progesterone. 
D)  hCG. 
E)  an enzyme.

Question 3

The first system to develop in the vertebrate embryo is the:

Accepted Answer

A)  circulatory system. 
B)  digestive system. 
C)  excretory system. 
D)  reproductive system. 
E)  nervous system. 
A)  circulatory system. 
B)  digestive system. 
C)  excretory system. 
D)  reproductive system. 
E)  nervous system.

Question 4

MATCHING
Match the stage of embryonic development with its description.
a.blastula
c.morula
b.gastrula
d.stage of organogenesis
-the first stage to contain a blastocoel

Accepted Answer

The answer of MATCHING
Match the stage of embryonic development with...

Question 5

MATCHING
Match the stage of embryonic development with its description.
a.blastula
c.morula
b.gastrula
d.stage of organogenesis
-many instances of induction occur during this stage

Accepted Answer

The answer of MATCHING
Match the stage of embryonic development with...

Question 6

MATCHING
Match the stage of embryonic development with its description.
a.blastula
c.morula
b.gastrula
d.stage of organogenesis
-a hollow ball of cells with a fluid filled cavity

Accepted Answer

The answer of MATCHING
Match the stage of embryonic development with...

Question 7

MATCHING
Match the stage of embryonic development with its description.
a.blastula
c.morula
b.gastrula
d.stage of organogenesis
-contains an archenteron

Accepted Answer

The answer of MATCHING
Match the stage of embryonic development with...

Question 8

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

Accepted Answer

A) True 
 B)False

Question 9

The blastopore is the opening to the blastocoel.
____________________

Accepted Answer

A) True 
 B)False

Question 10

MATCHING
Match the stage of embryonic development with its description.
a.blastula
c.morula
b.gastrula
d.stage of organogenesis
-in mammals, this is called a blastocyst

Accepted Answer

The answer of MATCHING
Match the stage of embryonic development with...

Question 11

Which of the following statements would apply to both the fast block to polyspermy and nerve conductance?

Accepted Answer

A)  The plasma membrane is depolarized. 
B)  Calcium ions accumulate in the cytoplasm. 
C)  The sodium-potassium pump maintains the transmembrane potential. 
D)  A signal transduction pathway opens ion channels. 
E)  The cytoplasm is positively charged relative to the extracellular space. 
A)  The plasma membrane is depolarized. 
B)  Calcium ions accumulate in the cytoplasm. 
C)  The sodium-potassium pump maintains the transmembrane potential. 
D)  A signal transduction pathway opens ion channels. 
E)  The cytoplasm is positively charged relative to the extracellular space.

Question 12

The notochord induces the neural plate.
____________________

Accepted Answer

A) True 
 B)False

Question 13

The fast block to polyspermy involves the:

Accepted Answer

A)  release of inhibitors of acrosomal enzymes. 
B)  synthesis of a new sperm-resistant membrane. 
C)  accumulation of calcium ions in the acrosome. 
D)  opening of ion channels that change the polarity of the egg membrane. 
E)  destruction of excess bindin receptors on the sperm. 
A)  release of inhibitors of acrosomal enzymes. 
B)  synthesis of a new sperm-resistant membrane. 
C)  accumulation of calcium ions in the acrosome. 
D)  opening of ion channels that change the polarity of the egg membrane. 
E)  destruction of excess bindin receptors on the sperm.

Question 14

MATCHING
Match the stage of embryonic development with its description.
a.blastula
c.morula
b.gastrula
d.stage of organogenesis
-the formation of a blastopore begins this stage

Accepted Answer

The answer of MATCHING
Match the stage of embryonic development with...

Question 15

Which of the following occurs during gastrulation?

Accepted Answer

A)  formation of the gray crescent region 
B)  formation of ectoderm, mesoderm, and endoderm 
C)  closure of the archenteron 
D)  formation of the blastocoel 
E)  radial cleavage takes place 
A)  formation of the gray crescent region 
B)  formation of ectoderm, mesoderm, and endoderm 
C)  closure of the archenteron 
D)  formation of the blastocoel 
E)  radial cleavage takes place

Question 16

An embryo having a blastodisc exhibits holoblastic cleavage.
____________________

Accepted Answer

A) True 
 B)False

Question 17

MATCHING
Match the stage of embryonic development with its description.
a.blastula
c.morula
b.gastrula
d.stage of organogenesis
-in humans, the embryo implants in the uterus when in this stage

Accepted Answer

The answer of MATCHING
Match the stage of embryonic development with...

Question 18

In birds and reptiles, the allanotois stores nitrogenous wastes.
____________________

Accepted Answer

A) True 
 B)False

Exam 51: Animal Development

Compare and contrast the roles of cell division and morphogenesis in the development of an animal.

The trophoblast secretes ______ that signals the corpus luteum that pregnancy has begun.

The first system to develop in the vertebrate embryo is the:

MATCHING Match the stage of embryonic development with its description. a.blastula c.morula b.gastrula d.stage of organogenesis -the first stage to contain a blastocoel

MATCHING Match the stage of embryonic development with its description. a.blastula c.morula b.gastrula d.stage of organogenesis -many instances of induction occur during this stage

MATCHING Match the stage of embryonic development with its description. a.blastula c.morula b.gastrula d.stage of organogenesis -a hollow ball of cells with a fluid filled cavity

MATCHING Match the stage of embryonic development with its description. a.blastula c.morula b.gastrula d.stage of organogenesis -contains an archenteron

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

The blastopore is the opening to the blastocoel. ____________________

MATCHING Match the stage of embryonic development with its description. a.blastula c.morula b.gastrula d.stage of organogenesis -in mammals, this is called a blastocyst

Which of the following statements would apply to both the fast block to polyspermy and nerve conductance?

The notochord induces the neural plate. ____________________

The fast block to polyspermy involves the:

MATCHING Match the stage of embryonic development with its description. a.blastula c.morula b.gastrula d.stage of organogenesis -the formation of a blastopore begins this stage

Which of the following occurs during gastrulation?

An embryo having a blastodisc exhibits holoblastic cleavage. ____________________

MATCHING Match the stage of embryonic development with its description. a.blastula c.morula b.gastrula d.stage of organogenesis -in humans, the embryo implants in the uterus when in this stage

In birds and reptiles, the allanotois stores nitrogenous wastes. ____________________

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

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