Question 1

A major disadvantage of the evolutionary species concept is that it

Accepted Answer

A) relies primarily on reproductive isolation to identify species. 
B) applies to both sexually and asexually reproducing species. 
C) uses morphological traits to distinguish species. 
D) is the same as the classic biological species concept. 
A) relies primarily on reproductive isolation to identify species. 
B) applies to both sexually and asexually reproducing species. 
C) uses morphological traits to distinguish species. 
D) is the same as the classic biological species concept.

Question 2

The ______________ was proposed to help explain speciation that appears in the fossil record.

Accepted Answer

A) evolutionary species concept 
B) morphological species concept 
C) phylogenetic species concept 
D) genetic divergence species concept 
A) evolutionary species concept 
B) morphological species concept 
C) phylogenetic species concept 
D) genetic divergence species concept

Question 3

Adaptive radiation occurs when organisms

Accepted Answer

A) exploit a variety of new environments. 
B) remain in the same,stable environment. 
C) undergo autoploidy and alloploidy. 
D) occupy the same habitat as their ancestral species. 
A) exploit a variety of new environments. 
B) remain in the same,stable environment. 
C) undergo autoploidy and alloploidy. 
D) occupy the same habitat as their ancestral species.

Question 4

Two species of the garter snake in the genus Thamnophis are found in the same geographic region.These species are not likely to meet and attempt to reproduce because one lives mainly in the water,while the other species spends most of its time on land.This is known as

Accepted Answer

A) behavioral isolation. 
B) habitat isolation. 
C) temporal isolation. 
D) zygote mortality. 
A) behavioral isolation. 
B) habitat isolation. 
C) temporal isolation. 
D) zygote mortality.

Question 5

When a diploid plant produces diploid gametes due to nondisjunction during meiosis,what occurs?

Accepted Answer

A) Autoploidy is occurring. 
B) An increase in the number of chromosomes above the parent species occurs. 
C) A triploid or tetraploid plant may occur. 
D) All of the above are true. 
A) Autoploidy is occurring. 
B) An increase in the number of chromosomes above the parent species occurs. 
C) A triploid or tetraploid plant may occur. 
D) All of the above are true.

Question 6

The Greek root words meaning "together" and "fatherland" are the basis for the term

Accepted Answer

A) prezygotic. 
B) adaptive radiation. 
C) speciation. 
D) allopatric. 
E) sympatric. 
A) prezygotic. 
B) adaptive radiation. 
C) speciation. 
D) allopatric. 
E) sympatric.

Question 7

The process in which natural selection favors the continual development of prezygotic isolating mechanisms is called

Accepted Answer

A) disruptive selection. 
B) sympatric speciation. 
C) mutation. 
D) reinforcement. 
A) disruptive selection. 
B) sympatric speciation. 
C) mutation. 
D) reinforcement.

Question 8

What type of speciation requires a geographic barrier?

Accepted Answer

A) sympatric speciation 
B) allopatric speciation 
C) both sympatric and allopatric speciation require a geographic barrier 
D) neither sympatric or allopatric speciation require a geographic barrier 
A) sympatric speciation 
B) allopatric speciation 
C) both sympatric and allopatric speciation require a geographic barrier 
D) neither sympatric or allopatric speciation require a geographic barrier

Question 9

A cross between a male horse and a female donkey produces a mule.Mules are an example of

Accepted Answer

A) hybrid infertility. 
B) temporal isolation. 
C) gametic isolation. 
D) zygote mortality. 
A) hybrid infertility. 
B) temporal isolation. 
C) gametic isolation. 
D) zygote mortality.

Question 10

The history of life on Earth can be studied by looking at ___________ instead of _________.

Accepted Answer

A) macroevolution,microevolution 
B) microevolution,macroevolution 
C) sexual selection,macroevolution 
D) gene flow,microevolution 
A) macroevolution,microevolution 
B) microevolution,macroevolution 
C) sexual selection,macroevolution 
D) gene flow,microevolution

Question 11

Plant species A has a diploid number of 28 chromosomes,while Plant species B has a diploid number of 14 chromosomes.Species A and B produce a hybrid through alloploidy.The diploid number of chromosomes of the hybrid is

Accepted Answer

A) 28. 
B) 14. 
C) 42. 
D) 21. 
A) 28. 
B) 14. 
C) 42. 
D) 21.

Question 12

The biological species concept is limited,and may not be applied to

Accepted Answer

A) asexually reproducing organisms. 
B) organisms known only in the fossil record. 
C) species that could possibly interbreed if they lived near one another. 
D) All of the above. 
A) asexually reproducing organisms. 
B) organisms known only in the fossil record. 
C) species that could possibly interbreed if they lived near one another. 
D) All of the above.

Question 13

________ prevent hybrid offspring from developing or if the hybrid is born,it is infertile.

Accepted Answer

A) Prezygotic reproductive isolating mechanisms 
B) Temporal isolation mechanisms 
C) Postzygotic isolating mechanisms 
D) Two of these are correct. 
E) None of the above. 
A) Prezygotic reproductive isolating mechanisms 
B) Temporal isolation mechanisms 
C) Postzygotic isolating mechanisms 
D) Two of these are correct. 
E) None of the above.

Exam 17: Speciation and Macroevolution

A major disadvantage of the evolutionary species concept is that it

The ______________ was proposed to help explain speciation that appears in the fossil record.

Adaptive radiation occurs when organisms

Two species of the garter snake in the genus Thamnophis are found in the same geographic region.These species are not likely to meet and attempt to reproduce because one lives mainly in the water,while the other species spends most of its time on land.This is known as

When a diploid plant produces diploid gametes due to nondisjunction during meiosis,what occurs?

The Greek root words meaning "together" and "fatherland" are the basis for the term

The process in which natural selection favors the continual development of prezygotic isolating mechanisms is called

What type of speciation requires a geographic barrier?

A cross between a male horse and a female donkey produces a mule.Mules are an example of

The history of life on Earth can be studied by looking at ___________ instead of _________.

Plant species A has a diploid number of 28 chromosomes,while Plant species B has a diploid number of 14 chromosomes.Species A and B produce a hybrid through alloploidy.The diploid number of chromosomes of the hybrid is

The biological species concept is limited,and may not be applied to

________ prevent hybrid offspring from developing or if the hybrid is born,it is infertile.

A View of Life

Basic Chemistry

The Chemistry of Organic Molecules

Cell Structure and Function

Membrane Structure and Function

Metabolism: Energy and Enzymes

Photosynthesis

Cellular Respiration

The Cell Cycle and Cellular Reproduction

Meiosis and Sexual Reproduction

Mendelian Patterns of Inheritance

Molecular Biology of the Gene

Regulation of Gene Expression

Biotechnology and Genomics

Darwin and Evolution

How Populations Evolve

Origin and History of Life

Taxonomy,systematics,and Phylogeny

Viruses,bacteria,and Archaea

Protist Evolution and Diversity

Fungi Evolution and Diversity

Plant Evolution and Diversity

Flowering Plants: Structure and Organization

Flowering Plants: Nutrition and Transport

Flowering Plants: Control of Growth Responses

Flowering Plants: Reproduction

Invertebrate Evolution

Vertebrate Evolution

Human Evolution

Animal Organization and Homeostasis

Circulation and Cardiovascular Systems

The Lymphatic and Immune Systems

Digestive Systems and Nutrition

Respiratory Systems

Body Fluid Regulation and Excretory Systems

Neurons and Nervous Systems

Sense Organs

Locomotion and Support Systems

Hormones and Endocrine Systems

Reproductive Systems

Animal Development

Behavioral Ecology

Population Ecology

Community and Ecosystem Ecology

Major Ecosystems of the Biosphere

Conservation of Biodiversity

Filters

The history of life on Earth can be studied by looking at ___ instead of _.