Question 1

There is an ozone "hole" over ____.

Accepted Answer

A) the United States 
B) Western Europe 
C) Antarctica 
D) Central America 
E) North Africa 
A) the United States 
B) Western Europe 
C) Antarctica 
D) Central America 
E) North Africa

Question 2

Four of the five answers are correct ways to reduce the impact of plastic trash. Select the exception.

Accepted Answer

A) choose durable items over disposable ones. 
B) recycle and reuse 
C) avoid buying plastic products where alternatives exist 
D) dispose of waste properly 
E) ask for plastic shopping bags instead of using your own bags 
A) choose durable items over disposable ones. 
B) recycle and reuse 
C) avoid buying plastic products where alternatives exist 
D) dispose of waste properly 
E) ask for plastic shopping bags instead of using your own bags

Question 3

Estimates of the number of currently living species range as high as 1 trillion, but the number of those that have been described and named is only about ____.

Accepted Answer

A) 10 billion 
B) 2 billion 
C) 25 million 
D) 2 million 
E) 200 thousand 
A) 10 billion 
B) 2 billion 
C) 25 million 
D) 2 million 
E) 200 thousand

Question 4

What benefits living organisms by absorbing most ultraviolet (UV) radiation from incoming sunlight?

Accepted Answer

A) the ozone layer 
B) nitrogen 
C) carbon dioxide 
D) chlorofluorocarbons 
E) sulfur oxides 
A) the ozone layer 
B) nitrogen 
C) carbon dioxide 
D) chlorofluorocarbons 
E) sulfur oxides

Question 5

What are some effects of global climate change other than rising sea levels?

Accepted Answer

Temperature changes are important cues f

Question 6

How does rising temperature elevate sea levels?

Accepted Answer

Rising temperature elevates sea level by

Question 7

Describe the difference between endangered, threatened, and endemic species.

Accepted Answer

An endangered species is a species that

Question 8

One of the symptoms of global warming is a decrease in the persistence of sea ice in the Arctic, which affects polar bears by ____.

Accepted Answer

A) increasing their access to salmon 
B) reducing their access to seal 
C) improving the chances of their young surviving and reproducing 
D) decreasing mercury contamination in their tissues 
E) increasing their access to seal 
A) increasing their access to salmon 
B) reducing their access to seal 
C) improving the chances of their young surviving and reproducing 
D) decreasing mercury contamination in their tissues 
E) increasing their access to seal

Question 9

What happens when plant cover is removed from the ground?

Accepted Answer

A) The ground will be wetter because roots are no longer sucking up water. 
B) Less rain will fall because of reduced transpiration. 
C) The ground soaks up more water after a rainfall. 
D) More species will fill the habitat. 
E) Lakes and rivers become larger. 
A) The ground will be wetter because roots are no longer sucking up water. 
B) Less rain will fall because of reduced transpiration. 
C) The ground soaks up more water after a rainfall. 
D) More species will fill the habitat. 
E) Lakes and rivers become larger.

Question 10

Which scientists are most likely to survey biodiversity and seek ways to maintain and use biodiversity nondestructively?

Accepted Answer

A) geneticists 
B) taxonomists 
C) conservationists 
D) sociologists 
E) geologists 
A) geneticists 
B) taxonomists 
C) conservationists 
D) sociologists 
E) geologists

Question 11

Match the term with the appropriate description. Terms may be used once or more than once.
-air pollutants released by coal-burning power plants

Accepted Answer

A) sulfur dioxides 
B) nitrogen oxides 
C) wet deposition 
D) dry deposition 
E) CFCs
F)ozone 
A) sulfur dioxides 
B) nitrogen oxides 
C) wet deposition 
D) dry deposition 
E) CFCs
F)ozone

Question 12

How do desertification and deforestation lead to reduced precipitation and drought?

Accepted Answer

The loss of plants means reduced transpi

Question 13

Average global temperatures are increasing, with the more pronounced rise at what latitudes?

Accepted Answer

A) polar only 
B) equatorial only 
C) temperate only 
D) temperate and polar 
E) equatorial and polar 
A) polar only 
B) equatorial only 
C) temperate only 
D) temperate and polar 
E) equatorial and polar

Question 14

​Today, Africa's Sahara desert is expanding south into the Sahel region primarily as a result of desertification caused by ____.

Accepted Answer

A) ​pollution 
B) ​overlogging 
C) ​drought 
D) ​plowing 
E) ​overgrazing 
A) ​pollution 
B) ​overlogging 
C) ​drought 
D) ​plowing 
E) ​overgrazing

Question 15

Match the term with the appropriate description. Terms may be used once or more than once.
-​currently the main ozone destroyers

Accepted Answer

A) sulfur dioxides 
B) nitrogen oxides 
C) wet deposition 
D) dry deposition 
E) CFCs
F)ozone 
A) sulfur dioxides 
B) nitrogen oxides 
C) wet deposition 
D) dry deposition 
E) CFCs
F)ozone

Question 16

-This map illustrates the location and conservation status of the land ecoregions deemed most important by which organization?

Accepted Answer

World Wild

Question 17

Heavy harvesting of which invertebrate species during the 1970s reduced the population to about 1% of its original size?

Accepted Answer

A) the western bumblebee 
B) the white abalone 
C) the monarch butterfly 
D) the spiny lobster 
E) the yellow stonefly 
A) the western bumblebee 
B) the white abalone 
C) the monarch butterfly 
D) the spiny lobster 
E) the yellow stonefly

Question 18

Currently, which pollutant is the main ozone destroyer?

Accepted Answer

A) sulfur dioxide 
B) nitrous oxide 
C) chlorofluorocarbon 
D) ammonium 
E) mercury 
A) sulfur dioxide 
B) nitrous oxide 
C) chlorofluorocarbon 
D) ammonium 
E) mercury

Question 19

If extinction is a natural process that occurs on an ongoing basis, how do extinctions occurring now differ from those of any other mass extinction periods?

Accepted Answer

Unlike most previous mass extinctions, t

Question 20

Individuals and conservation groups have donated funds to buy land in the Monteverde Cloud Forest in Costa Rica. As a result, much of the forest is now protected as a private nature reserve. This is an example of ____.

Accepted Answer

A) restoration 
B) preservation 
C) fragmentation 
D) desertification 
E) deforestation 
A) restoration 
B) preservation 
C) fragmentation 
D) desertification 
E) deforestation

Exam 44: Human Effects on the Biosphere

There is an ozone "hole" over ____.

Four of the five answers are correct ways to reduce the impact of plastic trash. Select the exception.

Estimates of the number of currently living species range as high as 1 trillion, but the number of those that have been described and named is only about ____.

What benefits living organisms by absorbing most ultraviolet (UV) radiation from incoming sunlight?

What are some effects of global climate change other than rising sea levels?

How does rising temperature elevate sea levels?

Describe the difference between endangered, threatened, and endemic species.

One of the symptoms of global warming is a decrease in the persistence of sea ice in the Arctic, which affects polar bears by ____.

What happens when plant cover is removed from the ground?

Which scientists are most likely to survey biodiversity and seek ways to maintain and use biodiversity nondestructively?

Match the term with the appropriate description. Terms may be used once or more than once. -air pollutants released by coal-burning power plants

How do desertification and deforestation lead to reduced precipitation and drought?

Average global temperatures are increasing, with the more pronounced rise at what latitudes?

​Today, Africa's Sahara desert is expanding south into the Sahel region primarily as a result of desertification caused by ____.

Match the term with the appropriate description. Terms may be used once or more than once. -​currently the main ozone destroyers

-This map illustrates the location and conservation status of the land ecoregions deemed most important by which organization?

Heavy harvesting of which invertebrate species during the 1970s reduced the population to about 1% of its original size?

Currently, which pollutant is the main ozone destroyer?

If extinction is a natural process that occurs on an ongoing basis, how do extinctions occurring now differ from those of any other mass extinction periods?

Individuals and conservation groups have donated funds to buy land in the Monteverde Cloud Forest in Costa Rica. As a result, much of the forest is now protected as a private nature reserve. This is an example of ____.

The Science of Biology

Lifes Chemical Basis

Molecules of Life

Cell Structure

Ground Rules of Metabolism

Where It Starts-Photosynthesis

Releasing Chemical Energy

DNA Structure and Function

From DNA to Protein

Control of Gene Expression

How Cells Reproduce

Meiosis and Sexual Reproduction

Patterns in Inherited Traits

Human Inheritance

Biotechnology

Evidence of Evolution

Processes of Evolution

Lifes Origin and Early Evolution

Viruses, Bacteria, and Archaea

The Protists

Plant Evolution

Fungi

Animals I: Major Invertebrate Groups

Animals Ii: the Chordates

Plant Tissues

Plant Nutrition and Transport

Plant Reproduction and Development

Animal Tissues and Organ Systems

Neural Control

Sensory Perception

Endocrine Control

Structural Support and Movement

Circulation

Immunity

Respiration

Digestion and Human Nutrition

Maintaining the Internal Environment

Reproduction and Development

Animal Behavior

Population Ecology

Community Ecology

Ecosystems

The Biosphere

Filters

Today, Africa's Sahara desert is expanding south into the Sahel region primarily as a result of desertification caused by ____.

Match the term with the appropriate description. Terms may be used once or more than once. -currently the main ozone destroyers