Question 1

Which of thfollowing statements is CORRECT?

Accepted Answer

A) A population cannot exceed the carrying capacity even temporarily. 
B) An organism can occupy more than one trophic level, depending upon the feeding habits of the organism. 
C) Once populations of organisms become isolated, they remain so by various types of isolation mechanisms. 
D) The limits of a population are all traced to climatic or physical factors. 
E) Organisms with different evolutionary backgrounds can occupy the same niche at the same time. 
A) A population cannot exceed the carrying capacity even temporarily. 
B) An organism can occupy more than one trophic level, depending upon the feeding habits of the organism. 
C) Once populations of organisms become isolated, they remain so by various types of isolation mechanisms. 
D) The limits of a population are all traced to climatic or physical factors. 
E) Organisms with different evolutionary backgrounds can occupy the same niche at the same time. B

Question 2

Which of thfollowing statements is FALSE?

Accepted Answer

A) Succession is highly predictable. 
B) Pioneer species have wide ranges of tolerances. 
C) Pioneer plant species are usually small annuals. 
D) The succession that occurs after a large fire is primary succession. 
E) Climax species are those that are best adapted to the specific climate where the succession occurs. 
A) Succession is highly predictable. 
B) Pioneer species have wide ranges of tolerances. 
C) Pioneer plant species are usually small annuals. 
D) The succession that occurs after a large fire is primary succession. 
E) Climax species are those that are best adapted to the specific climate where the succession occurs. D

Question 3

Which is NOT an examplof coevolution?

Accepted Answer

A) insect and flower 
B) predator and prey 
C) host and parasite 
D) model and mimic 
E) sharks and dolphins 
A) insect and flower 
B) predator and prey 
C) host and parasite 
D) model and mimic 
E) sharks and dolphins E

Question 4

Carbon dioxidin thatmosphere

Accepted Answer

A) is destroying the ozone layer. 
B) has dramatically increased in the last few decades. 
C) is one of the prime reasons for acid depositions. 
D) is a waste gas produced by respiration and has no biological use. 
E) can change spontaneously to carbon monoxide in sunlight. 
A) is destroying the ozone layer. 
B) has dramatically increased in the last few decades. 
C) is one of the prime reasons for acid depositions. 
D) is a waste gas produced by respiration and has no biological use. 
E) can change spontaneously to carbon monoxide in sunlight.

Question 5

In biological magnification,

Accepted Answer

A) poisons build up in food chains and webs so that the concentration is highest at the high end of the food chain. 
B) there is a tendency for an environment to change when organisms first invade. 
C) more highly evolved forms are able to build large populations under favorable conditions. 
D) parasites spread rapidly through congested populations. 
E) sediments fill in aquatic environments so that succession will occur if organisms disturb the aquatic habitat. 
A) poisons build up in food chains and webs so that the concentration is highest at the high end of the food chain. 
B) there is a tendency for an environment to change when organisms first invade. 
C) more highly evolved forms are able to build large populations under favorable conditions. 
D) parasites spread rapidly through congested populations. 
E) sediments fill in aquatic environments so that succession will occur if organisms disturb the aquatic habitat.

Question 6

Which of thfollowing is NOT a typof symbiosis?

Accepted Answer

A) mutualism 
B) parasitism 
C) commensalism 
D) competition 
E) none of these are symbiosis 
A) mutualism 
B) parasitism 
C) commensalism 
D) competition 
E) none of these are symbiosis

Question 7

Nitrogen is releaseinto thatmospherby

Accepted Answer

A) nitrogen fixation. 
B) denitrification. 
C) nitrification. 
D) ammonification. 
E) decomposition. 
A) nitrogen fixation. 
B) denitrification. 
C) nitrification. 
D) ammonification. 
E) decomposition.

Question 8

Thweakest symbiotic attachment, in which onspecies simply lives better in thpresencof another species without harming it is

Accepted Answer

A) commensalism. 
B) competitive exclusion. 
C) mutualism. 
D) obligate mutualism. 
E) parasitism. 
A) commensalism. 
B) competitive exclusion. 
C) mutualism. 
D) obligate mutualism. 
E) parasitism.

Question 9

Which of thfollowing does NOT apply to parasitoids?

Accepted Answer

A) kill animal on which they feed 
B) insects 
C) host usually survives 
D) smaller in size than prey 
E) effective biocontrol agents 
A) kill animal on which they feed 
B) insects 
C) host usually survives 
D) smaller in size than prey 
E) effective biocontrol agents

Question 10

Four of thfivanswers listebelow ardefenschemicals.Select thEXCEPTION.

Accepted Answer

A) perfume 
B) warning odors 
C) poisons 
D) alarm substances 
E) repellent 
A) perfume 
B) warning odors 
C) poisons 
D) alarm substances 
E) repellent

Question 11

Nichrefers to the

Accepted Answer

A) home range of an animal. 
B) preferred habitat for an organism. 
C) functional role of a species in a community. 
D) territory occupied by a species. 
E) locale in which a species lives. 
A) home range of an animal. 
B) preferred habitat for an organism. 
C) functional role of a species in a community. 
D) territory occupied by a species. 
E) locale in which a species lives.

Question 12

Carbon dioxidis a pollutant becausit

Accepted Answer

A) is absorbed by the ocean and converted into insoluble carbonates. 
B) is utilized when fossil fuel is burned. 
C) is a waste product of photosynthesis. 
D) cannot be recycled at a rate equal to its present production. 
E) is replacing oxygen as the most abundant gas in the air. 
A) is absorbed by the ocean and converted into insoluble carbonates. 
B) is utilized when fossil fuel is burned. 
C) is a waste product of photosynthesis. 
D) cannot be recycled at a rate equal to its present production. 
E) is replacing oxygen as the most abundant gas in the air.

Question 13

Which of thfollowing is an adaptation against predation?

Accepted Answer

A) thorns 
B) social behavior 
C) mimicry 
D) thorns and social behavior 
E) thorns, social behavior, and mimicry 
A) thorns 
B) social behavior 
C) mimicry 
D) thorns and social behavior 
E) thorns, social behavior, and mimicry

Question 14

Which gas is increasein thatmospheranamplifies thgreen houseffect?

Accepted Answer

A) carbon dioxide 
B) carbon monoxide 
C) ozone 
D) fluorocarbon 
E) oxygen 
A) carbon dioxide 
B) carbon monoxide 
C) ozone 
D) fluorocarbon 
E) oxygen

Question 15

A goat eating by pulling thplant out of thgrounis an examplof

Accepted Answer

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

Question 16

Which of thfollowing is thmost inclusive?

Accepted Answer

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

Question 17

Most of thenergy within an ecosysteis lost

Accepted Answer

A) when organisms disperse. 
B) when organisms die. 
C) as a result of metabolism. 
D) by the organism at the top of the food web. 
E) during breathing. 
A) when organisms disperse. 
B) when organisms die. 
C) as a result of metabolism. 
D) by the organism at the top of the food web. 
E) during breathing.

Question 18

Exotic species that arintroduceinto a non-nativhabitat usually

Accepted Answer

A) interbreed with native species. 
B) drive endemic species to extinction. 
C) die out due to competition from native species. 
D) blend in with endemic species. 
E) create habitat islands for themselves. 
A) interbreed with native species. 
B) drive endemic species to extinction. 
C) die out due to competition from native species. 
D) blend in with endemic species. 
E) create habitat islands for themselves.

Question 19

For most plant ananimal groups, thnumber of species is greatest

Accepted Answer

A) at latitude zero. 
B) at latitude 10° north. 
C) at latitude 20° north. 
D) at latitude 30° south. 
E) at latitude 50° north. 
A) at latitude zero. 
B) at latitude 10° north. 
C) at latitude 20° north. 
D) at latitude 30° south. 
E) at latitude 50° north.

Question 20

Which of thfollowing CANNOT bplacein a singltrophic level?

Accepted Answer

A) oak tree 
B) zebra 
C) mushroom 
D) rabbit 
E) earthworm 
A) oak tree 
B) zebra 
C) mushroom 
D) rabbit 
E) earthworm

Exam 17: Communities and Ecosystems

Which of thfollowing statements is CORRECT?

Which of thfollowing statements is FALSE?

Which is NOT an examplof coevolution?

Carbon dioxidin thatmosphere

In biological magnification,

Which of thfollowing is NOT a typof symbiosis?

Nitrogen is releaseinto thatmospherby

Thweakest symbiotic attachment, in which onspecies simply lives better in thpresencof another species without harming it is

Which of thfollowing does NOT apply to parasitoids?

Four of thfivanswers listebelow ardefenschemicals.Select thEXCEPTION.

Nichrefers to the

Carbon dioxidis a pollutant becausit

Which of thfollowing is an adaptation against predation?

Which gas is increasein thatmospheranamplifies thgreen houseffect?

A goat eating by pulling thplant out of thgrounis an examplof

Which of thfollowing is thmost inclusive?

Most of thenergy within an ecosysteis lost

Exotic species that arintroduceinto a non-nativhabitat usually

For most plant ananimal groups, thnumber of species is greatest

Which of thfollowing CANNOT bplacein a singltrophic level?

Invitation to Biology

Molecules of Life

Cell Structure

Energy and Metabolism

Capturing and Releasing Energy

Dna Structure and Function

Gene Expression and Control

How Cells Reproduce

Patterns of Inheritance

Biotechnology

Evidence of Evolution

Processes of Evolution

Early Life Forms and the Viruses

Plants and Fungi

Animal Evolutionunit

Population Ecology

The Biosphere and Human Eff Ects

Animal Tissues and Organs

How Animals Move

Circulation and Respiration

Immunity

Digestion and Excretion

Neural Control and the Senses

Endocrine Control

Reproduction and Development

Plant Form and Function

Plant Reproduction and Development

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