Question 1

A climax community is one that

Accepted Answer

A) Is relatively stable and long lasting 
B) Lasts forever 
C) Contains oaks or white spruce 
D) Is impervious to disruption 
E) Is adapted to periodic disruption 
A) Is relatively stable and long lasting 
B) Lasts forever 
C) Contains oaks or white spruce 
D) Is impervious to disruption 
E) Is adapted to periodic disruption

Question 2

Resource partitioning tends to lead to a high degree of _______ in species.

Accepted Answer

A) Specialization 
B) Evolution 
C) Convergent evolution 
D) Generalization 
E) Divergent evolution 
A) Specialization 
B) Evolution 
C) Convergent evolution 
D) Generalization 
E) Divergent evolution

Question 3

Cheetahs can run extremely fast because

Accepted Answer

A) They need to outrun lions 
B) Their ancestors who were able to run fast had an advantage and passed those genes on to their offsprings 
C) Over time, they gradually built up speed as they adapted to faster and faster prey species 
D) They are competing with stronger lions and hyenas for their food, so they need to be fast 
E) All of the options above 
A) They need to outrun lions 
B) Their ancestors who were able to run fast had an advantage and passed those genes on to their offsprings 
C) Over time, they gradually built up speed as they adapted to faster and faster prey species 
D) They are competing with stronger lions and hyenas for their food, so they need to be fast 
E) All of the options above

Question 4

Which of the following statements is true?

Accepted Answer

A) In a mutualistic relationship one partner benefits and the other is neither harmed nor helped 
B) In a mutualistic relationship both partners benefit from the relationship 
C) In a commensalistic relationship one partner benefits and the other is adversely affected 
D) In a commensalistic relationship both partners benefit equally 
E) In a parasitic relationship both partners are adversely affected 
A) In a mutualistic relationship one partner benefits and the other is neither harmed nor helped 
B) In a mutualistic relationship both partners benefit from the relationship 
C) In a commensalistic relationship one partner benefits and the other is adversely affected 
D) In a commensalistic relationship both partners benefit equally 
E) In a parasitic relationship both partners are adversely affected

Question 5

In a commensal relationship,

Accepted Answer

A) One species benefits while the other neither suffers nor benefits 
B) One species benefits while the other suffers 
C) Two species live together and both suffer 
D) Two species live together and neither benefits nor suffers 
E) Two species live together and both benefit 
A) One species benefits while the other neither suffers nor benefits 
B) One species benefits while the other suffers 
C) Two species live together and both suffer 
D) Two species live together and neither benefits nor suffers 
E) Two species live together and both benefit

Question 6

In the partnership of a lichen, the fungus provides _________ and the relationship is best described as _______.

Accepted Answer

A) Most of the photosynthesis; symbiosis 
B) Poisons that deter predation; commensalism 
C) Structure and moisture-holding ability; mutualism 
D) Very little to the algal partner; parasitism 
E) Some of the photosynthesis; commensalism 
A) Most of the photosynthesis; symbiosis 
B) Poisons that deter predation; commensalism 
C) Structure and moisture-holding ability; mutualism 
D) Very little to the algal partner; parasitism 
E) Some of the photosynthesis; commensalism

Question 7

Intraspecific competition is competition among ________ for resources.

Accepted Answer

A) Predators and prey 
B) Plants and animals 
C) Producers, consumers and detritivores 
D) Members of different species 
E) Members of a single species 
A) Predators and prey 
B) Plants and animals 
C) Producers, consumers and detritivores 
D) Members of different species 
E) Members of a single species

Question 8

Some communities, such as grasslands, may never really reach F.E. Clements's concept of a climax stage because

Accepted Answer

A)  Ecological succession works too slowly 
B)  There is no optimum community for these environments 
C)  They are adapted to periodic disturbance 
D)  Their environmental conditions are too unstable 
E)  Primary succession is a slow process 
A)  Ecological succession works too slowly 
B)  There is no optimum community for these environments 
C)  They are adapted to periodic disturbance 
D)  Their environmental conditions are too unstable 
E)  Primary succession is a slow process

A climax community is one that

Resource partitioning tends to lead to a high degree of _______ in species.

Cheetahs can run extremely fast because

Which of the following statements is true?

In a commensal relationship,

In the partnership of a lichen, the fungus provides ___ and the relationship is best described as _.

Intraspecific competition is competition among ________ for resources.

Some communities, such as grasslands, may never really reach F.E. Clements's concept of a climax stage because

Understanding Our Environment

Principles of Science and Systems

Matter, Energy, and Life

Biomes

Population Biology

Human Populations

Environmental Health and Toxicology

Food and Hunger

Farming: Conventional and Sustainable Practices

Biodiversity

Biodiversity: Preserving Landscapes

Restoration Ecology

Geology and Earth Resources

Climate Change

Air Pollution

Water Use and Management

Water Pollution

Conventional Energy

Sustainable Energy

Solid, Toxic, and Hazardous Waste

Urbanization and Sustainable Cities

Ecological Economics

Environmental Policy, Law, and Planning

What Then Shall We Do

Filters

Exam 4: Evolution, Biological Communities, and Species Interactions

A climax community is one that

Resource partitioning tends to lead to a high degree of _______ in species.

Cheetahs can run extremely fast because

Which of the following statements is true?

In a commensal relationship,

In the partnership of a lichen, the fungus provides _________ and the relationship is best described as _______.

Intraspecific competition is competition among ________ for resources.

Some communities, such as grasslands, may never really reach F.E. Clements's concept of a climax stage because

Understanding Our Environment

Principles of Science and Systems

Matter, Energy, and Life

Biomes

Population Biology

Human Populations

Environmental Health and Toxicology

Food and Hunger

Farming: Conventional and Sustainable Practices

Biodiversity

Biodiversity: Preserving Landscapes

Restoration Ecology

Geology and Earth Resources

Climate Change

Air Pollution

Water Use and Management

Water Pollution

Conventional Energy

Sustainable Energy

Solid, Toxic, and Hazardous Waste

Urbanization and Sustainable Cities

Ecological Economics

Environmental Policy, Law, and Planning

What Then Shall We Do

Filters

In the partnership of a lichen, the fungus provides ___ and the relationship is best described as _.