Question 1

Which of the following is an example of an interacting effect causing a decline in a species?

Accepted Answer

A) habitat loss of the polar bear 
B) dodo birds being hunted by sailors 
C) pollution buildup in the eggs of eagles 
D) decline in buffalo causing a drop in native clover 
E) all of these 
A) habitat loss of the polar bear 
B) dodo birds being hunted by sailors 
C) pollution buildup in the eggs of eagles 
D) decline in buffalo causing a drop in native clover 
E) all of these D

Question 2

A species that has population levels so low it faces extinction in all or part of its range is designated as

Accepted Answer

A) riparian. 
B) endemic. 
C) endangered. 
D) fragmented. 
E) an indicator. 
A) riparian. 
B) endemic. 
C) endangered. 
D) fragmented. 
E) an indicator. C

Question 3

Our knowledge of existing species is limited and biased toward __________.

Accepted Answer

vertebrates

Question 4

__________ species are likely to become endangered in the future.

Accepted Answer

The answer of __________ species are likely to become endangered...

Question 5

Development of cities and towns can have all of the following effects EXCEPT

Accepted Answer

A) to produce pollutants that kill endangered species. 
B) to bring exotic species of plants to an area that take over and kill native species. 
C) pet cats can kill songbirds. 
D) to fragment breeding areas and interfere with normal migration patterns. 
E) all of these are effects of development. 
A) to produce pollutants that kill endangered species. 
B) to bring exotic species of plants to an area that take over and kill native species. 
C) pet cats can kill songbirds. 
D) to fragment breeding areas and interfere with normal migration patterns. 
E) all of these are effects of development.

Question 6

Biologists identify __________, which are larger regions characterized by their physical characteristics as well as the species in them.

Accepted Answer

The answer of Biologists identify __________, which are larger regions...

Question 7

__________ species, which evolved in one place and are present only in that habitat, are highly vulnerable to extinction.

Accepted Answer

The answer of __________ species, which evolved in one place...

Question 8

According to the text, __________ major mass extinction(s) and recovery(ies) has(have) taken place in the past.

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
E) 5 
A) 1 
B) 2 
C) 3 
D) 4 
E) 5

Question 9

An __________ species is one that is especially sensitive to environmental change and can be monitored to determine the health of an ecosystem.

Accepted Answer

The answer of An __________ species is one that is...

Question 10

Exotic species that are introduced into a non-native habitat can

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 11

A broad land or ocean region defined by climate, geography, and producers is called

Accepted Answer

A) an ecoregion. 
B) a hot spot. 
C) a realm. 
D) a habitat island. 
E) the biosphere. 
A) an ecoregion. 
B) a hot spot. 
C) a realm. 
D) a habitat island. 
E) the biosphere.

Question 12

The image of the animal shown above caused quite a media frenzy in recent years due to reports that it was not extinct.What is it?

Accepted Answer

A) blue-footed booby 
B) ivory billed woodpecker 
C) dodo bird 
D) red caucaded woodpecker 
E) none of these 
A) blue-footed booby 
B) ivory billed woodpecker 
C) dodo bird 
D) red caucaded woodpecker 
E) none of these

Question 13

Habitat fragmentation can reduce biodiversity by

Accepted Answer

A) creating patches too small to maintain optimal breeding conditions. 
B) increasing the effects of chemical pollution. 
C) eliminating vast tracts of forests. 
D) introducing exotic species into a habitat. 
E) doing all of these. 
A) creating patches too small to maintain optimal breeding conditions. 
B) increasing the effects of chemical pollution. 
C) eliminating vast tracts of forests. 
D) introducing exotic species into a habitat. 
E) doing all of these.

Question 14

Polar bears are top predators, and tests on their tissues have shown a surprising

Accepted Answer

A) resistance to warming. 
B) amount of protein. 
C) resistance to disease. 
D) amount of mercury and organic pesticides 
E) evidence of none of these. 
A) resistance to warming. 
B) amount of protein. 
C) resistance to disease. 
D) amount of mercury and organic pesticides 
E) evidence of none of these.

Question 15

Tom Curtis wrote a letter in 2006 to try and encourage research into

Accepted Answer

A) rare plants. 
B) microorganisms. 
C) agricultural crops. 
D) prairie grasses. 
E) all of these. 
A) rare plants. 
B) microorganisms. 
C) agricultural crops. 
D) prairie grasses. 
E) all of these.

Question 16

Recovery from a mass extinction requires about how long?

Accepted Answer

A) 100,000 years 
B) none of these because recovery is never possible 
C) about as long as the extinction required 
D) less than one million years 
E) at least 10 million years 
A) 100,000 years 
B) none of these because recovery is never possible 
C) about as long as the extinction required 
D) less than one million years 
E) at least 10 million years

Question 17

We recognize three levels of biodiversity: genetic diversity, species diversity, and __________diversity.

Accepted Answer

The answer of We recognize three levels of biodiversity: genetic...

Question 18

Which of the following is most likely the cause of the current extinction crisis?

Accepted Answer

A) asteroid impact 
B) human activity 
C) adaptive radiation 
D) tectonic activity 
E) climate change 
A) asteroid impact 
B) human activity 
C) adaptive radiation 
D) tectonic activity 
E) climate change

Question 19

During the Proterozoic period photosynthetic cells caused

Accepted Answer

A) changes in the course of evolution due to production of oxygen. 
B) massive extinctions due to the production of chemical neurotoxins. 
C) the color of the oceans to change from blue to green. 
D) land formation due to the sediment buildup in shallow seas. 
E) none of these. 
A) changes in the course of evolution due to production of oxygen. 
B) massive extinctions due to the production of chemical neurotoxins. 
C) the color of the oceans to change from blue to green. 
D) land formation due to the sediment buildup in shallow seas. 
E) none of these.

Question 20

Endemic means a species

Accepted Answer

A) originated in one geographic region and lives nowhere else. 
B) could cause an epidemic at any time. 
C) is on its way to extinction. 
D) can live in only one habitat. 
E) is extinct. 
A) originated in one geographic region and lives nowhere else. 
B) could cause an epidemic at any time. 
C) is on its way to extinction. 
D) can live in only one habitat. 
E) is extinct.

Exam 49: Human Impacts on the Biosphere

Which of the following is an example of an interacting effect causing a decline in a species?

A species that has population levels so low it faces extinction in all or part of its range is designated as

Our knowledge of existing species is limited and biased toward __________.

__________ species are likely to become endangered in the future.

Development of cities and towns can have all of the following effects EXCEPT

Biologists identify __________, which are larger regions characterized by their physical characteristics as well as the species in them.

__________ species, which evolved in one place and are present only in that habitat, are highly vulnerable to extinction.

According to the text, __________ major mass extinction(s) and recovery(ies) has(have) taken place in the past.

An __________ species is one that is especially sensitive to environmental change and can be monitored to determine the health of an ecosystem.

Exotic species that are introduced into a non-native habitat can

A broad land or ocean region defined by climate, geography, and producers is called

The image of the animal shown above caused quite a media frenzy in recent years due to reports that it was not extinct.What is it?

Habitat fragmentation can reduce biodiversity by

Polar bears are top predators, and tests on their tissues have shown a surprising

Tom Curtis wrote a letter in 2006 to try and encourage research into

Recovery from a mass extinction requires about how long?

We recognize three levels of biodiversity: genetic diversity, species diversity, and __________diversity.

Which of the following is most likely the cause of the current extinction crisis?

During the Proterozoic period photosynthetic cells caused

Endemic means a species

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

Community Structure and Biodiversity

Ecosystems

The Biosphere

Filters