Question 1

The interaction in which one species benefits and the second species is neither harmed nor benefited is

Accepted Answer

A)   mutualism.
B)   parasitism.
C)   commensalism.
D)   competition.
E)   predation.

Question 2

The warming action on earth's atmosphere is referred to as

Accepted Answer

A)   respiration accumulation.
B)   the greenhouse effect.
C)   the smog problem.
D)   the blanket phenomenon.
E)   ozone depletion.

Question 3

The monarch butterfly is poisonous to birds and so birds avoid eating them. Viceroy butterflies look very similar to monarch butterflies but are not poisonous. Because they look like monarch butterflies, birds also do not eat viceroy butterflies. This is an example of

Accepted Answer

A)   resource partitioning.
B)   competitive exclusion.
C)   mimicry.
D)   camouflage.
E)   commensalism.

Question 4

In contrast to predation, a parasite usually

Accepted Answer

A)   does not kill the animal on which, or in which, it lives.
B)   kills its host.
C)   is a short-term visitor.
D)   is larger than its host.
E)   does not kill the animal on which, or in which, it lives and is larger than its host.

Question 5

Which of the following is an example of an event that would set up the scene for primary succession?

Accepted Answer

A)   a dense landslide of mountain rocks covering an entire valley
B)   a fire that burns off all of the surface vegetation
C)   an agricultural field that is abandoned
D)   a lake that dries up killing all of the aquatic plants
E)   all of these set the scene for secondary succession NOT primary succession

Question 6

What is the ultimate fate of the heat energy released when chemical bonds are broken?

Accepted Answer

A)   it is used to do metabolic work
B)   it diffuses out of the ecosystem
C)   it is recycled and reused
D)   it is captured by other organisms further down in the food chain
E)   it is used to heat animal bodies

Question 7

Which of the following is a primary consumer?

Accepted Answer

A)   tiger
B)   elephant
C)   eagle
D)   hyena
E)   snake

Question 8

In most land ecosystems, ___ food chains are most common.

Accepted Answer

A)   decomposer
B)   detrital
C)   producer
D)   consumer
E)   more than one of these

Question 9

Which of the following is the most inclusive?

Accepted Answer

A)   organism
B)   community
C)   ecosystem
D)   population
E)   organ system

Question 10

Which of the following is NOT an aspect of a species' niche?

Accepted Answer

A)   tolerable temperatures
B)   foods it can eat
C)   places where it can breed safely
D)   amount of water it needs
E)   all of these are aspects of a species' niche

Question 11

In a natural community, the primary consumers are

Accepted Answer

A)   herbivores.
B)   carnivores.
C)   detritivores.
D)   decomposers.
E)   producers.

Question 12

The niche of a lichen in an ecosystem is A) a producer.
B) a consumer.
C) a detritivore.
D) a decomposer.
E) more than one of these.
F) Because lichens are both fungi and a photosynthetic partner, a lichen is both a consumer (the fungus) and a producer (the photosynthetic partner)

Accepted Answer

The answer of The niche of a lichen in an...

Question 13

Selecting the Exception Four of the five answers listed below are relationships in which at least one of the interactants benefits. Select the EXCEPTION.

Accepted Answer

A)   competition
B)   parasitism
C)   mutualism
D)   commensalism
E)   predation

Question 14

Which of the following is NOT characteristic of parasites?

Accepted Answer

A)   They are specialists and usually are able to affect only one variety of hosts.
B)   They inflict serious injury and kill their hosts.
C)   Some reside inside their hosts, whereas others live outside their hosts.
D)   Their host may be a plant as well as an animal.
E)   They are dependent on hosts.

Question 15

Animals obtain minerals such as phosphorus

Accepted Answer

A)   primarily dissolved in drinking water.
B)   by inhalation.
C)   by eating meat.
D)   by eating plants.
E)   by eating meat and by eating plants.

Question 16

Which of the following is a TRUE statement concerning ecosystems?

Accepted Answer

A)   Energy flow through an ecosystem is one way and nutrients are recycled.
B)   Energy and nutrients are both recycled.
C)   Energy flow and nutrient flow are both one way.
D)   Nutrient flow through an ecosystem is one way and energy is recycled.
E)   None of these statements is true.

Question 17

Which of the following represents nitrification?

Accepted Answer

A)   conversion of nitrogen gas to ammonia
B)   conversion of nitrogen gas to nitrate
C)   conversion of ammonia to nitrate
D)   conversion of nitrate to ammonia
E)   conversion of nitrate to nitrogen gas

Question 18

Mistletoe is a plant that grows commonly on the limbs of hawthorn trees and extracts nutrients from its host plant. The relationship between mistletoe and the hawthorn tree is

Accepted Answer

A)   commensalism.
B)   mutualism.
C)   competition.
D)   predation.
E)   parasitism.

Question 19

Which of the following components are part of an ecosystem?

Accepted Answer

A)   plants
B)   animals
C)   rocks and soils
D)   plants and animals
E)   plants, animals, rocks, and soil

Question 20

Which of the following is true of predation?

Accepted Answer

A)   A predator exerts selective pressure on its prey.
B)   A prey exerts selective pressure on its predator.
C)   In a typical predation case, the predator would not kill its prey.
D)   Feeding on carcasses is also an example of predation.
E)   Predator and prey exert selective pressure on one another.

Exam 17: Communities and Ecosystems

Selecting the Exception Four of the five answers listed below are relationships in which at least one of the interactants benefits. Select the EXCEPTION.

Correct AnswerverifiedShow Answer

Mistletoe is a plant that grows commonly on the limbs of hawthorn trees and extracts nutrients from its host plant. The relationship between mistletoe and the hawthorn tree is

Correct AnswerverifiedShow Answer

The warming action on earth's atmosphere is referred to as

Correct AnswerverifiedShow Answer

Which of the following is a primary consumer?

Correct AnswerverifiedShow Answer

Which of the following components are part of an ecosystem?

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Which of the following is NOT characteristic of parasites?

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The monarch butterfly is poisonous to birds and so birds avoid eating them. Viceroy butterflies look very similar to monarch butterflies but are not poisonous. Because they look like monarch butterflies, birds also do not eat viceroy butterflies. This is an example of

Correct AnswerverifiedShow Answer

In most land ecosystems, ___ food chains are most common.

Correct AnswerverifiedShow Answer

The niche of a lichen in an ecosystem is A) a producer. B) a consumer. C) a detritivore. D) a decomposer. E) more than one of these. F) Because lichens are both fungi and a photosynthetic partner, a lichen is both a consumer (the fungus) and a producer (the photosynthetic partner)

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Animals obtain minerals such as phosphorus

Correct AnswerverifiedShow Answer

In contrast to predation, a parasite usually

Correct AnswerverifiedShow Answer

Which of the following is NOT an aspect of a species' niche?

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Which of the following represents nitrification?

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The interaction in which one species benefits and the second species is neither harmed nor benefited is

Correct AnswerverifiedShow Answer

Which of the following is the most inclusive?

Correct AnswerverifiedShow Answer

Which of the following is an example of an event that would set up the scene for primary succession?

Correct AnswerverifiedShow Answer

In a natural community, the primary consumers are

Correct AnswerverifiedShow Answer

What is the ultimate fate of the heat energy released when chemical bonds are broken?

Correct AnswerverifiedShow Answer

Which of the following is a TRUE statement concerning ecosystems?

Correct AnswerverifiedShow Answer

Which of the following is true of predation?

Correct AnswerverifiedShow Answer

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