Question 1

The umbilical cord of a mammal connects the:

Accepted Answer

A) fetus and the placenta. 
B) amnion and the chorion. 
C) yolk sac and the allantois. 
D) embryo and the amnion. 
E) maternal and fetal bloodstreams. 
A) fetus and the placenta. 
B) amnion and the chorion. 
C) yolk sac and the allantois. 
D) embryo and the amnion. 
E) maternal and fetal bloodstreams.

Question 2

Babies who are nursed rather than fed formula:

Accepted Answer

A) grow faster. 
B) grow slower. 
C) gain antibodies from the mother. 
D) fail to develop an immune system. 
E) are sicker than formula-fed babies. 
A) grow faster. 
B) grow slower. 
C) gain antibodies from the mother. 
D) fail to develop an immune system. 
E) are sicker than formula-fed babies.

Question 3

The mesoderm develops into the gonads and the skeleton. True or False?

Accepted Answer

A) True 
 B)False

Question 4

Which germ layer forms the pancreas?

Accepted Answer

A) endoderm 
B) ectoderm 
C) mesoderm 
D) somite 
E) amnion 
A) endoderm 
B) ectoderm 
C) mesoderm 
D) somite 
E) amnion

Question 5

________ is caused when a woman drinks heavily throughout her pregnancy.

Accepted Answer

Fetal alco

Question 6

When a researcher transplanted the nucleus of an intestinal cell from a tadpole into an egg cell whose nucleus had been destroyed, the egg developed into a normal frog. This illustrates that:

Accepted Answer

A) each cell of an organism has all the genes needed for development. 
B) the homeobox genes in a transplanted nucleus undergo mutation. 
C) a nucleus that is removed from its normal location is influenced by adjoining cells. 
D) scientists can clone a human by putting one of his or her nuclei into an egg cell. 
E) genes are lost in differentiation. 
A) each cell of an organism has all the genes needed for development. 
B) the homeobox genes in a transplanted nucleus undergo mutation. 
C) a nucleus that is removed from its normal location is influenced by adjoining cells. 
D) scientists can clone a human by putting one of his or her nuclei into an egg cell. 
E) genes are lost in differentiation.

Question 7

The early divisions of the zygote are called cleavage. True or False?

Accepted Answer

A) True 
 B)False

Question 8

The fetus can move and respond to stimuli as early as the ________ month.

Accepted Answer

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

Question 9

During mammalian development:

Accepted Answer

A) a zygote becomes a blastula. 
B) a gastrula becomes a morula. 
C) a morula becomes a blastula. 
D) a morula becomes gastrula. 
E) a blastula becomes a zygote. 
A) a zygote becomes a blastula. 
B) a gastrula becomes a morula. 
C) a morula becomes a blastula. 
D) a morula becomes gastrula. 
E) a blastula becomes a zygote.

Question 10

Yolk sacs are found only in animals with shelled eggs. True or False?

Accepted Answer

A) True 
 B)False

Question 11

Birds hatch out of their eggs looking like small versions of the adult. This is an example of:

Accepted Answer

A) direct development. 
B) genetic dwarfism. 
C) indirect development. 
D) internal development. 
E) external development. 
A) direct development. 
B) genetic dwarfism. 
C) indirect development. 
D) internal development. 
E) external development.

Question 12

In what ways are the juveniles of direct-development species like their parents, and in what way are they different?

Accepted Answer

The juveniles look like their

Question 13

A human embryo is known as a fetus after ________ weeks.

Accepted Answer

A) 2 
B) 4 
C) 10 
D) 12 
E) 16 
A) 2 
B) 4 
C) 10 
D) 12 
E) 16

Question 14

In species with direct development, fewer offspring are produced, but a higher proportion survives to adulthood. True or False?

Accepted Answer

A) True 
 B)False

Question 15

Why do organisms that have indirect development produce hundreds of offspring, whereas those with direct development produce relatively few offspring?

Accepted Answer

Organisms that have direct development p

Question 16

The embryo of the ________ undergoes direct development.

Accepted Answer

A) butterfly 
B) lobster 
C) frog 
D) fly 
E) bluebird 
A) butterfly 
B) lobster 
C) frog 
D) fly 
E) bluebird

Question 17

The placenta prevents pathogenic microbes like HIV and chemicals like alcohol from reaching the baby's bloodstream. True or False?

Accepted Answer

A) True 
 B)False

Question 18

An embryo was exposed to a chemical early in its development. At birth, there is chromosomal damage to the skin linked to the chemical exposure. What other organ system should be examined for the same damage?

Accepted Answer

The nervous system,

Question 19

Most fetuses can survive outside the womb after a minimum of ________ weeks.

Accepted Answer

A) 15 
B) 20 
C) 32 
D) 38 
E) 45 
A) 15 
B) 20 
C) 32 
D) 38 
E) 45

Question 20

Longevity in animals appears to be most related to their cells' ability to repair damage to their own DNA. True or False?

Accepted Answer

A) True 
 B)False

Exam 42: Animal Development

The umbilical cord of a mammal connects the:

Babies who are nursed rather than fed formula:

The mesoderm develops into the gonads and the skeleton. True or False?

Which germ layer forms the pancreas?

________ is caused when a woman drinks heavily throughout her pregnancy.

When a researcher transplanted the nucleus of an intestinal cell from a tadpole into an egg cell whose nucleus had been destroyed, the egg developed into a normal frog. This illustrates that:

The early divisions of the zygote are called cleavage. True or False?

The fetus can move and respond to stimuli as early as the ________ month.

During mammalian development:

Yolk sacs are found only in animals with shelled eggs. True or False?

Birds hatch out of their eggs looking like small versions of the adult. This is an example of:

In what ways are the juveniles of direct-development species like their parents, and in what way are they different?

A human embryo is known as a fetus after ________ weeks.

In species with direct development, fewer offspring are produced, but a higher proportion survives to adulthood. True or False?

Why do organisms that have indirect development produce hundreds of offspring, whereas those with direct development produce relatively few offspring?

The embryo of the ________ undergoes direct development.

The placenta prevents pathogenic microbes like HIV and chemicals like alcohol from reaching the baby's bloodstream. True or False?

An embryo was exposed to a chemical early in its development. At birth, there is chromosomal damage to the skin linked to the chemical exposure. What other organ system should be examined for the same damage?

Most fetuses can survive outside the womb after a minimum of ________ weeks.

Longevity in animals appears to be most related to their cells' ability to repair damage to their own DNA. True or False?

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

The Continuity of Life: Cellular 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 Amidst 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

How Do Ecosystems Work

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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