A) rarely kill their hosts B) are usually larger than their hosts C) must be internal to their hosts D) may strengthen their hosts over a long period of time E) are usually microscopic A) rarely kill their hosts B) are usually larger than their hosts C) must be internal to their hosts D) may strengthen their hosts over a long period of time E) are usually microscopic

Exam 5: Biodiversity, species Interactions, and Population Control

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Bats prey on certain species of moths by using high frequency echolocation to locate their prey.Certain moths have evolved ears that can hear these frequencies allowing them to escape.This is an example of ____.

(Multiple Choice)

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Question 41

When two species behave in ways that benefit both by providing each with food,shelter,or some other resource,it is called ____.

(Multiple Choice)

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Question 42

What is the number of individuals in a population found within a defined area or volume that can limit the size of some populations?

(Multiple Choice)

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Question 43

Which of the following is not considered a form of nondestructive behavior?

(Multiple Choice)

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Question 44

By 1900,white-tailed deer populations in the U.S.were reduced to about ,but now,since laws have been passed to protect them and their natural predators have nearly been eliminated,their population is over in the U.S.

(Multiple Choice)

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Question 45

What occurs when members of two or more species interact to gain access to the same limited resources?

(Multiple Choice)

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Question 46

What is the most common interaction between species?

(Multiple Choice)

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Question 47

Describe the three factors ecologists have identified that affect how and at what rate succession occurs.

(Essay)

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Question 48

Primary and secondary ecological succession tend to increase biodiversity of communities and ecosystems by increasing species richness and interactions among species.

(True/False)

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Question 49

Vast armies of ____________________ inhabit the digestive tracts of animals,such as humans,and help break down or digest their food.

(Short Answer)

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Question 50

Late successional plants are largely unaffected by plants at earlier stages of succession because they are not in direct competition for resources,a factor called ____.

(Multiple Choice)

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Question 51

Which of the following exhibits secondary ecological succession?

(Multiple Choice)

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Question 52

What occurs when an interaction benefits one species but has little,if any,effect on the other?

(Multiple Choice)

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Question 53

Parasites ____.

(Multiple Choice)

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Question 54

When plotting the number of individuals in a population against time,the data yield a J-shaped curve.What does this curve indicate?

(Multiple Choice)

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Question 55

The situation in which one set of species makes an area suitable for species with different niche requirements and often,less suitable for itself,is called ____.

(Multiple Choice)

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Question 56

The growth rate of a population increases as its size nears the carrying capacity of its environment.

(True/False)

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Question 57

Explain why it is important to care about the survival of the endangered southern sea otters of California.

(Essay)

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Question 58

Large mammals,such as elephants and rhinoceroses,are especially vulnerable to extinction because of their reproductive patterns.

(True/False)

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Question 59

The southern sea otter has been classified as a(n)____________________ species because in their absence,kelp forests would probably be destroyed.

(Short Answer)

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Question 60

Showing 41 - 60 of 90

Exam 5: Biodiversity, species Interactions, and Population Control

Bats prey on certain species of moths by using high frequency echolocation to locate their prey.Certain moths have evolved ears that can hear these frequencies allowing them to escape.This is an example of ____.

When two species behave in ways that benefit both by providing each with food,shelter,or some other resource,it is called ____.

What is the number of individuals in a population found within a defined area or volume that can limit the size of some populations?

Which of the following is not considered a form of nondestructive behavior?

By 1900,white-tailed deer populations in the U.S.were reduced to about ____,but now,since laws have been passed to protect them and their natural predators have nearly been eliminated,their population is over ____ in the U.S.

What occurs when members of two or more species interact to gain access to the same limited resources?

What is the most common interaction between species?

Describe the three factors ecologists have identified that affect how and at what rate succession occurs.

Primary and secondary ecological succession tend to increase biodiversity of communities and ecosystems by increasing species richness and interactions among species.

Vast armies of ____________________ inhabit the digestive tracts of animals,such as humans,and help break down or digest their food.

Late successional plants are largely unaffected by plants at earlier stages of succession because they are not in direct competition for resources,a factor called ____.

Which of the following exhibits secondary ecological succession?

What occurs when an interaction benefits one species but has little,if any,effect on the other?

Parasites ____.

When plotting the number of individuals in a population against time,the data yield a J-shaped curve.What does this curve indicate?

The situation in which one set of species makes an area suitable for species with different niche requirements and often,less suitable for itself,is called ____.

The growth rate of a population increases as its size nears the carrying capacity of its environment.

Explain why it is important to care about the survival of the endangered southern sea otters of California.

Large mammals,such as elephants and rhinoceroses,are especially vulnerable to extinction because of their reproductive patterns.

The southern sea otter has been classified as a(n)____________________ species because in their absence,kelp forests would probably be destroyed.

Environmental Problems, their Causes, and Sustainability

Science, matter, energy, and Systems

Ecosystems: What Are They and How Do They Work

Biodiversity and Evolution

The Human Population and Its Impact

Climate and Biodiversity

Aquatic Biodiversity

Sustaining Biodiversity: The Species Approach

Sustaining Terrestrial Biodiversity: The Ecosystem Approach

Sustaining Aquatic Biodiversity

Food, soil, and Pest Management

Water Resources

Geology and Nonrenewable Mineral Resources

Nonrenewable Energy

Energy Efficiency and Renewable Energy

Environmental Hazards and Human Health

Air Pollution

Climate Disruption and Ozone Depletion

Water Pollution

Solid and Hazardous Waste

Cities and Sustainability

Economics, environment, and Sustainability

Politics, environment, and Sustainability

Environmental Worldviews, ethics, and Sustainability

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By 1900,white-tailed deer populations in the U.S.were reduced to about ,but now,since laws have been passed to protect them and their natural predators have nearly been eliminated,their population is over in the U.S.