Question 1

The liver,pancreas,and lining of the digestive tract come from ______.

Accepted Answer

A)  ectoderm 
B)  endoderm 
C)  mesoderm 
D)  neural crest cells 
A)  ectoderm 
B)  endoderm 
C)  mesoderm 
D)  neural crest cells

Question 2

Hermaphrodites ______.

Accepted Answer

A)  possess both male and female reproductive systems 
B)  have the gonads of one sex but the external appearance of the other 
C)  usually fertilize themselves 
D)  have abnormal reproductive systems 
A)  possess both male and female reproductive systems 
B)  have the gonads of one sex but the external appearance of the other 
C)  usually fertilize themselves 
D)  have abnormal reproductive systems

Question 3

Which one of the following is a result of programmed cell death?

Accepted Answer

A)  formation of fingers in humans 
B)  gastrulation 
C)  formation of the notochord 
D)  formation of the brain 
A)  formation of fingers in humans 
B)  gastrulation 
C)  formation of the notochord 
D)  formation of the brain

Question 4

Examine the embryo in the following figure.The hands and feet of this embryo appear paddle-like,with no distinct toes or fingers.What process is needed to define each of the toes and fingers?

Accepted Answer

A)  programmed cell death 
B)  neurulation 
C)  gastrulation 
D)  induction 
A)  programmed cell death 
B)  neurulation 
C)  gastrulation 
D)  induction

Question 5

Please read the following paragraph and then answer the following question(s).
Birth control methods act at many points in the reproductive cycle. Some options, such as birth control pills, are highly effective at preventing pregnancy. However, only a few commonly available methods are effective at preventing the transmission of sexually transmitted disease. The Center for Disease Control estimates that each year about 10 million new STD infections strike people ages 15 to 24.
-A vasectomy ______.

Accepted Answer

A)  prevents the production of sperm in the testes 
B)  prevents the production of semen 
C)  prevents the movement of sperm into the urethra 
D)  is an effective method to prevent the transmission of sexually transmitted disease 
A)  prevents the production of sperm in the testes 
B)  prevents the production of semen 
C)  prevents the movement of sperm into the urethra 
D)  is an effective method to prevent the transmission of sexually transmitted disease

Question 6

When does the human embryo implant in the wall of the uterus?

Accepted Answer

A)  within a few hours of fertilization 
B)  about a day after conception 
C)  about a week after conception 
D)  just after gastrulation 
A)  within a few hours of fertilization 
B)  about a day after conception 
C)  about a week after conception 
D)  just after gastrulation

The liver,pancreas,and lining of the digestive tract come from ______.

Hermaphrodites ______.

Which one of the following is a result of programmed cell death?

Examine the embryo in the following figure.The hands and feet of this embryo appear paddle-like,with no distinct toes or fingers.What process is needed to define each of the toes and fingers?

When does the human embryo implant in the wall of the uterus?

Introduction- Biology Today

Essential Chemistry for Biology

The Molecules of Life

A Tour of the Cell

The Working Cell

Cellular Respiration: Obtaining Energy from Food

Photosynthesis: Using Light to Make Food

Cellular Reproduction: Cells from Cells

Patterns of Inheritance

The Structure and Function of DNA

How Genes Are Controlled

DNA Technology

How Populations Evolve

How Biological Diversity Evolves

The Evolution of Microbial Life

Plants, Fungi, and the Move onto Land

The Evolution of Animals

An Introduction to Ecology and the Biosphere

Population Ecology

Communities and Ecosystems

Unifying Concepts of Animal Structure and Function

Nutrition and Digestion

Circulation and Respiration

The Body's Defenses

Hormones

Nervous, Sensory, and Locomotor Systems

The Life of a Flowering Plant

The Working Plant

Filters

Exam 26: Reproduction and Development

The liver,pancreas,and lining of the digestive tract come from ______.

Hermaphrodites ______.

Which one of the following is a result of programmed cell death?

Examine the embryo in the following figure.The hands and feet of this embryo appear paddle-like,with no distinct toes or fingers.What process is needed to define each of the toes and fingers?

When does the human embryo implant in the wall of the uterus?

Introduction- Biology Today

Essential Chemistry for Biology

The Molecules of Life

A Tour of the Cell

The Working Cell

Cellular Respiration: Obtaining Energy from Food

Photosynthesis: Using Light to Make Food

Cellular Reproduction: Cells from Cells

Patterns of Inheritance

The Structure and Function of DNA

How Genes Are Controlled

DNA Technology

How Populations Evolve

How Biological Diversity Evolves

The Evolution of Microbial Life

Plants, Fungi, and the Move onto Land

The Evolution of Animals

An Introduction to Ecology and the Biosphere

Population Ecology

Communities and Ecosystems

Unifying Concepts of Animal Structure and Function

Nutrition and Digestion

Circulation and Respiration

The Body's Defenses

Hormones

Nervous, Sensory, and Locomotor Systems

The Life of a Flowering Plant

The Working Plant

Filters