Question 1

Which of these hormones stimulates the production of milk?

Accepted Answer

A)  Estrogen 
B)  Prolactin 
C)  Progesterone 
D)  Colostrum 
E)  Oxytocin 
A)  Estrogen 
B)  Prolactin 
C)  Progesterone 
D)  Colostrum 
E)  Oxytocin

Question 2

If a cell lacks transcription factors, __________will never be transcribed.

Accepted Answer

The answer of If a cell lacks transcription factors, __________will...

Question 3

The__________ implants in the mammalian uterus.

Accepted Answer

The answer of The__________ implants in the mammalian uterus....

Question 4

If your roommate smokes and she gets pregnant, what dangers would you warn her about?

Accepted Answer

Smoking during pregnancy leads

Question 5

-The fluid the embryo floats in is produced by structure

Accepted Answer

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

Question 6

During the embryonic stage, a hollow ball of cells is known as a

Accepted Answer

A)  gastrula. 
B)  blastula. 
C)  larva. 
D)  chorion. 
E)  morula. 
A)  gastrula. 
B)  blastula. 
C)  larva. 
D)  chorion. 
E)  morula.

Question 7

Adult stem cells derived from fat cells have been used to develop muscle and nerve cells in the lab. How is this possible?

Accepted Answer

Because all cells contain all

Question 8

Induction refers to

Accepted Answer

A)  the migration of cells to form the gastrula. 
B)  the formation of the mesoderm layer in a gastrula. 
C)  hormones from the motherʹs blood altering the development of the embryo. 
D)  the formation of the nervous system. 
E)  chemical messengers from one embryonic cell influencing the development of other cells. 
A)  the migration of cells to form the gastrula. 
B)  the formation of the mesoderm layer in a gastrula. 
C)  hormones from the motherʹs blood altering the development of the embryo. 
D)  the formation of the nervous system. 
E)  chemical messengers from one embryonic cell influencing the development of other cells.

Question 9

The nervous system forms from the

Accepted Answer

A)  endoderm. 
B)  ectoderm. 
C)  yolk. 
D)  chorion. 
E)  mesoderm. 
A)  endoderm. 
B)  ectoderm. 
C)  yolk. 
D)  chorion. 
E)  mesoderm.

Question 10

Based on experiments with amphibian embryos, Spemann and Mangold found that

Accepted Answer

A)  transplanted cells always formed a whole new embryo. 
B)  donor cells maintained their original differentiation no matter where in the host they were transplanted. 
C)  transplanted cells completely undifferentiated into random masses of tissue. 
D)  transplanted cells always died. 
E)  in most cases, transplanted donor cells assumed the developmental fate of the area to which they were transplanted in the host. 
A)  transplanted cells always formed a whole new embryo. 
B)  donor cells maintained their original differentiation no matter where in the host they were transplanted. 
C)  transplanted cells completely undifferentiated into random masses of tissue. 
D)  transplanted cells always died. 
E)  in most cases, transplanted donor cells assumed the developmental fate of the area to which they were transplanted in the host.

Question 11

__________is the antibody-rich milk produced in the first few days after delivery.

Accepted Answer

The answer of __________is the antibody-rich milk produced in the...

Question 12

The amnion forms the watery environment that encloses the embryo.

Accepted Answer

A) True 
 B)False

Question 13

All cells in an animal, with the exception of gametes, are genetically identical.

Accepted Answer

A) True 
 B)False

Question 14

If the formation of the endoderm does not take place in an embryo, yet the embryo, for whatever reason, continues to develop, which of the following structures will NOT develop?

Accepted Answer

A)  Skin 
B)  Heart 
C)  Stomach 
D)  Kidneys 
E)  Nervous system 
A)  Skin 
B)  Heart 
C)  Stomach 
D)  Kidneys 
E)  Nervous system

Question 15

Cells differentiate during development because

Accepted Answer

A)  in each cell only some of the genes are expressed. 
B)  chemicals in the sperm cytoplasm determine which cells develop. 
C)  genes respond only to influences outside the motherʹs body. 
D)  each cell contains only a portion of the genes. 
A)  in each cell only some of the genes are expressed. 
B)  chemicals in the sperm cytoplasm determine which cells develop. 
C)  genes respond only to influences outside the motherʹs body. 
D)  each cell contains only a portion of the genes.

Question 16

As early as the __________month, as the brain and spinal cord grow, the fetus can demonstrate movement and respond to stimuli.

Accepted Answer

A)  fifth 
B)  sixth 
C)  fourth 
D)  third 
E)  second 
A)  fifth 
B)  sixth 
C)  fourth 
D)  third 
E)  second

Question 17

In humans, implantation occurs

Accepted Answer

A)  immediately after fertilization. 
B)  when the embryo is a gastrula. 
C)  after the formation of the neural tube. 
D)  just prior to fertilization. 
E)  when the zygote is a blastocyst. 
A)  immediately after fertilization. 
B)  when the embryo is a gastrula. 
C)  after the formation of the neural tube. 
D)  just prior to fertilization. 
E)  when the zygote is a blastocyst.

Question 18

The muscle and bone tissues of adults are derived from the embryonic tissue layer called the __________.

Accepted Answer

The answer of The muscle and bone tissues of adults...

Question 19

-The function of structure 1 is to

Accepted Answer

A)  store metabolic wastes. 
B)  exchange nutrients and wastes between mother and embryo. 
C)  enclose the embryo in a liquid environment. 
D)  provide nutrients to the embryo before implantation. 
E)  form the maternal component of the placenta. 
A)  store metabolic wastes. 
B)  exchange nutrients and wastes between mother and embryo. 
C)  enclose the embryo in a liquid environment. 
D)  provide nutrients to the embryo before implantation. 
E)  form the maternal component of the placenta.

Question 20

A human embryologist examines a 3-week-old embryo and notices that it has not developed a notochord. If the embryo survives, it will lack

Accepted Answer

A)  a stomach and a pancreas. 
B)  a heart and lungs. 
C)  a brain and a spinal cord. 
D)  skin and blood vessels. 
A)  a stomach and a pancreas. 
B)  a heart and lungs. 
C)  a brain and a spinal cord. 
D)  skin and blood vessels.

Exam 43: Animal Development

Which of these hormones stimulates the production of milk?

If a cell lacks transcription factors, __________will never be transcribed.

The__________ implants in the mammalian uterus.

If your roommate smokes and she gets pregnant, what dangers would you warn her about?

-The fluid the embryo floats in is produced by structure

During the embryonic stage, a hollow ball of cells is known as a

Adult stem cells derived from fat cells have been used to develop muscle and nerve cells in the lab. How is this possible?

Induction refers to

The nervous system forms from the

Based on experiments with amphibian embryos, Spemann and Mangold found that

__________is the antibody-rich milk produced in the first few days after delivery.

The amnion forms the watery environment that encloses the embryo.

All cells in an animal, with the exception of gametes, are genetically identical.

If the formation of the endoderm does not take place in an embryo, yet the embryo, for whatever reason, continues to develop, which of the following structures will NOT develop?

Cells differentiate during development because

As early as the __________month, as the brain and spinal cord grow, the fetus can demonstrate movement and respond to stimuli.

In humans, implantation occurs

The muscle and bone tissues of adults are derived from the embryonic tissue layer called the __________.

-The function of structure 1 is to

A human embryologist examines a 3-week-old embryo and notices that it has not developed a notochord. If the embryo survives, it will lack

An Introduction to Life on Earth

Atoms, Molecules, and Life

Biological Molecules

Cell Structure and Function

Cell Membrane Structure and Function

Energy Flow in the Life of a Cell

Capturing Solar Energy: Photosynthesis

Harvesting Energy: Glycolysis and Cellular Respiration

Cellular Reproduction

Meiosis: the Basis of Sexual Reproduction

Patterns of Inheritance

DNA: The Molecule of Heredity

Gene Expression and Regulation

Biotechnology

Principles of Evolution

How Populations Evolve

The Origin of Species

The History of Life

Systematics: Seeking Order Amid Diversity

The Diversity of Prokaryotes and Viruses

The Diversity of Protists

The Diversity of Plants

The Diversity of Fungi

Animal Diversity I: Invertebrates

Animal Diversity Ii: Vertebrates

Animal Behavior

Population Growth and Regulation

Community Interactions

Energy Flow and Nutrient Cycling in Ecosystems

Earths Diverse Ecosystems

Conserving Earths Biodiversity

Homeostasis and the Organization of the Animal Body

Circulation

Respiration

Nutrition and Digestion

The Urinary System

Defenses Against Disease

Chemical Control of the Animal Body: the Endocrine System

The Nervous System

The Senses

Action and Support: the Muscles and Skeleton

Animal Reproduction

Plant Anatomy and Nutrient Transport

Plant Reproduction and Development

Plant Responses to the Environment

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