Question 1

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

Question 2

The relationship between the yucca plant and the yucca moth that pollinates it is

Accepted Answer

A) camouflage.   
B) commensalism. 
C) competitive exclusion. 
D) mutualism. 
E) all of these. 
A) camouflage.   
B) commensalism. 
C) competitive exclusion. 
D) mutualism. 
E) all of these.

Question 3

A relationship in which two species intereact and both benefit is

Accepted Answer

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

Question 4

-The photograph above of the aphid and the wasp is an example of

Accepted Answer

A) mimicry. 
B) display behavior. 
C) warning coloration. 
D) chemical defenses. 
E) biological control of pests. 
A) mimicry. 
B) display behavior. 
C) warning coloration. 
D) chemical defenses. 
E) biological control of pests.

Question 5

Imported fire ants attack

Accepted Answer

A) humans. 
B) livestock. 
C) pets. 
D) wildlife. 
E) all of these.   
A) humans. 
B) livestock. 
C) pets. 
D) wildlife. 
E) all of these.

Question 6

Argentine fire ants entered the United States in the

Accepted Answer

A) 1920s. 
B) 1930s. 
C) 1940s. 
D) 1950s. 
E) 1960s. 
A) 1920s. 
B) 1930s. 
C) 1940s. 
D) 1950s. 
E) 1960s.

Question 7

Which of the following is (are) true about predator-prey coevolution?

Accepted Answer

A) Each species exerts selection pressure on the other. 
B) Predators are selective agents that favor improved prey defenses. 
C) Prey with better defenses are selective agents that favor better predator hunting skills. 
D) All of the above are true. 
E) None of the above are true. 
A) Each species exerts selection pressure on the other. 
B) Predators are selective agents that favor improved prey defenses. 
C) Prey with better defenses are selective agents that favor better predator hunting skills. 
D) All of the above are true. 
E) None of the above are true.

Question 8

Coevolution is

Accepted Answer

A) where each species is a selective agent that shifts the range of variation in the other 
B) random association between two individuals that allows similarity patterns to emerge. 
C) resource partitioning between two related species. 
D) mutualistic associations and commensalism. 
E) none of these. 
A) where each species is a selective agent that shifts the range of variation in the other 
B) random association between two individuals that allows similarity patterns to emerge. 
C) resource partitioning between two related species. 
D) mutualistic associations and commensalism. 
E) none of these.

Question 9

Which of the following does NOT apply to parasitoids?

Accepted Answer

A) insects 
B) kill animals on which they feed 
C) host usually survives 
D) larvae develop in host body 
E) can beeffective biocontrol agents 
A) insects 
B) kill animals on which they feed 
C) host usually survives 
D) larvae develop in host body 
E) can beeffective biocontrol agents

Question 10

Which of the following is (are) a factor(s) determining community structure?

Accepted Answer

A) species interactions 
B) species adaptations 
C) climate and topography 
D) seasonal resource availability 
E) all of these 
A) species interactions 
B) species adaptations 
C) climate and topography 
D) seasonal resource availability 
E) all of these

Question 11

An aggressive species of chipmunks keeps other chipmunk species out of its habitat.This behavior provides an example of

Accepted Answer

A) a neutral interaction. 
B) exploitation competition. 
C) interference competition. 
D) competitive exclusion. 
E) intraspecific competition. 
A) a neutral interaction. 
B) exploitation competition. 
C) interference competition. 
D) competitive exclusion. 
E) intraspecific competition.

Question 12

An interaction between two species in which one species benefits and the other species is harmed is

Accepted Answer

A) mutualism. 
B) commensalism. 
C) competition. 
D) predation. 
E) none of these. 
A) mutualism. 
B) commensalism. 
C) competition. 
D) predation. 
E) none of these.

Question 13

Two species of phorid flies are being used to control fire ants.The fly

Accepted Answer

A) is a parasitoid of the fire ant. 
B) lays an egg in the ant's soft internal tissues. 
C) produces a larva that eats the ant's interior. 
D) larva uses the ant's empty head as a metamorphosis chamber. 
E) fits all of these descriptions. 
A) is a parasitoid of the fire ant. 
B) lays an egg in the ant's soft internal tissues. 
C) produces a larva that eats the ant's interior. 
D) larva uses the ant's empty head as a metamorphosis chamber. 
E) fits all of these descriptions.

Question 14

In exploitive competition,

Accepted Answer

A) one species blocks access of another species to resources. 
B) both species have access to a resource they both need. 
C) both species are equally good at utilizing the resource. 
D) all of these occur. 
E) none of these occur. 
A) one species blocks access of another species to resources. 
B) both species have access to a resource they both need. 
C) both species are equally good at utilizing the resource. 
D) all of these occur. 
E) none of these occur.

Question 15

Hover flies like to drop in at outdoor picnics to sample the sweets, but the reaction of the humans is to flee the scene because of the flies' uncanny resemblance to bees.Thus, the survival of the hover fly is enhanced by

Accepted Answer

A) mimicry. 
B) display behavior. 
C) warning coloration. 
D) chemical defenses. 
E) camouflage. 
A) mimicry. 
B) display behavior. 
C) warning coloration. 
D) chemical defenses. 
E) camouflage.

Question 16

Adaptive responses of predators to prey defenses include

Accepted Answer

A) camouflage. 
B) bright coloration 
C) ways of avoiding repellents and toxins. 
D) speed. 
E) a, c and d are all correct. 
A) camouflage. 
B) bright coloration 
C) ways of avoiding repellents and toxins. 
D) speed. 
E) a, c and d are all correct.

Question 17

Parasitoids

Accepted Answer

A) are an alternative to pesticides. 
B) will kill rather than damage those that they infect. 
C) are biotic or natural controls. 
D) are better than pesticides in that they are target-specific (they affect a limited number and type of organisms). 
E) are all of these. 
A) are an alternative to pesticides. 
B) will kill rather than damage those that they infect. 
C) are biotic or natural controls. 
D) are better than pesticides in that they are target-specific (they affect a limited number and type of organisms). 
E) are all of these.

Question 18

A one-way relationship in which one species benefits at the expense of another is

Accepted Answer

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

Question 19

Competitive exclusion is based on the idea that

Accepted Answer

A) one species will hold some sort of advantage over the other one. 
B) no two species can completely occupy the same niche. 
C) the more two species overlap in their capacity to obtain and use resources the less likely they are to coexist. 
D) all of these are true. 
E) none of these are true. 
A) one species will hold some sort of advantage over the other one. 
B) no two species can completely occupy the same niche. 
C) the more two species overlap in their capacity to obtain and use resources the less likely they are to coexist. 
D) all of these are true. 
E) none of these are true.

Question 20

Which of the following would be more likely to affect an animal's habitat than its niche?

Accepted Answer

A) rainfall 
B) prey abundance 
C) predators 
D) defense mechanisms 
E) competitors 
A) rainfall 
B) prey abundance 
C) predators 
D) defense mechanisms 
E) competitors

Exam 46: Community Structure and Biodiversity

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

The relationship between the yucca plant and the yucca moth that pollinates it is

A relationship in which two species intereact and both benefit is

-The photograph above of the aphid and the wasp is an example of

Imported fire ants attack

Argentine fire ants entered the United States in the

Which of the following is (are) true about predator-prey coevolution?

Coevolution is

Which of the following does NOT apply to parasitoids?

Which of the following is (are) a factor(s) determining community structure?

An aggressive species of chipmunks keeps other chipmunk species out of its habitat.This behavior provides an example of

An interaction between two species in which one species benefits and the other species is harmed is

Two species of phorid flies are being used to control fire ants.The fly

In exploitive competition,

Hover flies like to drop in at outdoor picnics to sample the sweets, but the reaction of the humans is to flee the scene because of the flies' uncanny resemblance to bees.Thus, the survival of the hover fly is enhanced by

Adaptive responses of predators to prey defenses include

Parasitoids

A one-way relationship in which one species benefits at the expense of another is

Competitive exclusion is based on the idea that

Which of the following would be more likely to affect an animal's habitat than its niche?

Invitation to Biology

Lifes Chemical Basis

Molecules of Life

Cell Structure and Function

A Closer Look at Cell Membranes

Ground Rules of Metabolism

Where It Startsphotosynthesis

Energy-Releasing Pathways

How Cells Reproduce

Meiosis and Sexual Reproduction

Observing Patterns in Inherited Traits

Chromosomes and Human Inheritance

Dna Structure and Function

From Dna to Protein

Controls Over Genes

Recombinant Dna and Genetic Engineering

The Macroevolutionary Puzzle

Emergence of Evolutionary Thought

Organizing Information About Species

The Origin and Evolution of Life

Viruses and Prokaryotes

Protists the Simplest Eukaryotes

Plants

Fungi

Animals: the Invertebrates

Animal Evolution the Chordates

Human Evolution: a Case Study

Plant Tissues

Plant Nutrition and Transport

Plant Reproduction

Plant Growth and Development

Animal Tissues and Organ Systems

Neural Control

Sensory Perception

Endocrine Control

Protection, Support, and Movement

Circulation

Immunity

Respiration

Digestion and Human Nutrition

Maintaining the Internal Environment

Animal Reproductive Systems

Animal Development

Animal Behavior

Population Ecology

Ecosystems

The Biosphere

Human Impacts on the Biosphere

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