Question 1

Which flower provides the anticancer drugs vincristine and vinblastine?

Accepted Answer

A)  four-o'clock 
B)  sunflower 
C)  petunia 
D)  rosy periwinkle 
E)  rose 
A)  four-o'clock 
B)  sunflower 
C)  petunia 
D)  rosy periwinkle 
E)  rose

Question 2

Irrigated land accounts for approximately what percentage of human food production?

Accepted Answer

A)  10 
B)  30 
C)  50 
D)  75 
E)  90 
A)  10 
B)  30 
C)  50 
D)  75 
E)  90

Question 3

The age structure diagram for rapidly growing populations

Accepted Answer

A)  is in the form of a pyramid. 
B)  is characterized by a large percentage of the population in the post-reproductive years. 
C)  has a very broad base showing a large number of young. 
D)  has about equal distribution between all age groups. 
E)  is in the form of a pyramid and has a very broad base showing a large number of young. 
A)  is in the form of a pyramid. 
B)  is characterized by a large percentage of the population in the post-reproductive years. 
C)  has a very broad base showing a large number of young. 
D)  has about equal distribution between all age groups. 
E)  is in the form of a pyramid and has a very broad base showing a large number of young.

Question 4

To a person studying utilization of classroom space on campus, the most useful data concerning students in a classroom would be expressed by the number of

Accepted Answer

A)  total individuals. 
B)  individuals per square yard. 
C)  individuals per room. 
D)  rooms per building. 
E)  students of each age. 
A)  total individuals. 
B)  individuals per square yard. 
C)  individuals per room. 
D)  rooms per building. 
E)  students of each age.

Question 5

The highest rates of reproduction would be expected in which of the following countries?

Accepted Answer

A)  United States 
B)  Germany 
C)  Nigeria 
D)  Argentina 
E)  Russia 
A)  United States 
B)  Germany 
C)  Nigeria 
D)  Argentina 
E)  Russia

Question 6

Which acid is a severe air pollutant?

Accepted Answer

A)  carbonic acid 
B)  nitric acid 
C)  hydrofluoric acid 
D)  hydrochloric acid 
E)  boric acid 
A)  carbonic acid 
B)  nitric acid 
C)  hydrofluoric acid 
D)  hydrochloric acid 
E)  boric acid

Question 7

The efficient use of which of the following energy resource is limited by geographical location?

Accepted Answer

A)  coal 
B)  gas 
C)  wind 
D)  nuclear 
E)  oil 
A)  coal 
B)  gas 
C)  wind 
D)  nuclear 
E)  oil

Question 8

Uses of chlorofluorocarbons include each of the following EXCEPT

Accepted Answer

A)  gasoline additives. 
B)  air conditioner coolants. 
C)  refrigeration coolants. 
D)  plastic packaging. 
E)  solvents. 
A)  gasoline additives. 
B)  air conditioner coolants. 
C)  refrigeration coolants. 
D)  plastic packaging. 
E)  solvents.

Question 9

Which atmospheric gas does not affect global temperature?

Accepted Answer

A)  carbon dioxide 
B)  ozone 
C)  methane 
D)  nitrous oxide 
E)  oxygen 
A)  carbon dioxide 
B)  ozone 
C)  methane 
D)  nitrous oxide 
E)  oxygen

Question 10

Forests serve to

Accepted Answer

A)  hold water. 
B)  control soil erosion. 
C)  control flooding. 
D)  control sediment buildup in lakes, rivers and reservoirs. 
E)  all of these. 
A)  hold water. 
B)  control soil erosion. 
C)  control flooding. 
D)  control sediment buildup in lakes, rivers and reservoirs. 
E)  all of these.

Question 11

Selecting the Exception Four of the five answers listed below are effects of acid rain. Select the exception.

Accepted Answer

A)  attacks marble, metals, mortar, and nylons 
B)  causes air inversion and pollution events 
C)  makes toxic heavy metals more mobile 
D)  has different effects in different watersheds 
E)  produces sterile lakes 
A)  attacks marble, metals, mortar, and nylons 
B)  causes air inversion and pollution events 
C)  makes toxic heavy metals more mobile 
D)  has different effects in different watersheds 
E)  produces sterile lakes

Question 12

Before the banning of DDT, which animals were most devastated by its use?

Accepted Answer

A)  bald eagles 
B)  peregrine falcons 
C)  ospreys 
D)  brown pelicans 
E)  all of these 
A)  bald eagles 
B)  peregrine falcons 
C)  ospreys 
D)  brown pelicans 
E)  all of these

Question 13

A benefit of global warming includes

Accepted Answer

A)  farming in areas that were too cold in the past. 
B)  more open shipping channels in the Arctic. 
C)  commercial fishing in the Arctic ocean. 
D)  milder winters in regions far to the north. 
E)  all of these. 
A)  farming in areas that were too cold in the past. 
B)  more open shipping channels in the Arctic. 
C)  commercial fishing in the Arctic ocean. 
D)  milder winters in regions far to the north. 
E)  all of these.

Question 14

Of the earth's land, what is the maximum percentage now being used for agriculture?

Accepted Answer

A)  10 
B)  15 
C)  25 
D)  50 
E)  75 
A)  10 
B)  15 
C)  25 
D)  50 
E)  75

Question 15

Human populations can grow at a maximum rate of

Accepted Answer

A)  5% per year. 
B)  2 - 5% per year. 
C)  10% per year. 
D)  15% per year. 
E)  20% per year. 
A)  5% per year. 
B)  2 - 5% per year. 
C)  10% per year. 
D)  15% per year. 
E)  20% per year.

Question 16

Which form of sea life is showing signs of decreasing in numbers?

Accepted Answer

A)  carp 
B)  swordfish 
C)  sharks 
D)  blue fish 
E)  eels 
A)  carp 
B)  swordfish 
C)  sharks 
D)  blue fish 
E)  eels

Question 17

In 2006, what was the average amount of garbage generated per person per day in the United States?

Accepted Answer

A)  25.6 pounds 
B)  10.5 pounds 
C)  15.2 ounces 
D)  4.6 pounds 
E)  1.5 pounds 
A)  25.6 pounds 
B)  10.5 pounds 
C)  15.2 ounces 
D)  4.6 pounds 
E)  1.5 pounds

Question 18

Air pollution may cause

Accepted Answer

A)  lung damage. 
B)  DNA mutations. 
C)  skin cancer. 
D)  burning eyes. 
E)  all of these. 
A)  lung damage. 
B)  DNA mutations. 
C)  skin cancer. 
D)  burning eyes. 
E)  all of these.

Question 19

Which characteristic of a population is a convenient way to express the rate of change within a population?

Accepted Answer

A)  size 
B)  growth 
C)  density 
D)  carrying capacity 
E)  age 
A)  size 
B)  growth 
C)  density 
D)  carrying capacity 
E)  age

Question 20

Deforestation is greatest in

Accepted Answer

A)  Brazil. 
B)  Indonesia. 
C)  Colombia. 
D)  Mexico. 
E)  all of these. 
A)  Brazil. 
B)  Indonesia. 
C)  Colombia. 
D)  Mexico. 
E)  all of these.

Exam 25: Human Impacts on the Biosphere

Which flower provides the anticancer drugs vincristine and vinblastine?

Irrigated land accounts for approximately what percentage of human food production?

The age structure diagram for rapidly growing populations

To a person studying utilization of classroom space on campus, the most useful data concerning students in a classroom would be expressed by the number of

The highest rates of reproduction would be expected in which of the following countries?

Which acid is a severe air pollutant?

The efficient use of which of the following energy resource is limited by geographical location?

Uses of chlorofluorocarbons include each of the following EXCEPT

Which atmospheric gas does not affect global temperature?

Forests serve to

Selecting the Exception Four of the five answers listed below are effects of acid rain. Select the exception.

Before the banning of DDT, which animals were most devastated by its use?

A benefit of global warming includes

Of the earth's land, what is the maximum percentage now being used for agriculture?

Human populations can grow at a maximum rate of

Which form of sea life is showing signs of decreasing in numbers?

In 2006, what was the average amount of garbage generated per person per day in the United States?

Air pollution may cause

Which characteristic of a population is a convenient way to express the rate of change within a population?

Deforestation is greatest in

Learning About Human Biology

Chemistry of Life

Cells and How They Work

Tissues, Organs, and Organ Systems

The Skeletal System

The Muscular System

Circulation: the Heart and Blood Vessels

Blood

Immunity and Disease

The Respiratory System

Digestion and Nutrition

The Urinary System

The Nervous System

Sensory Systems

The Endocrine System

Reproductive Systems

Development and Aging

Cell Reproduction

Introduction to Genetics

Chromosomes and Human Genetics

DNA, Genes, and Biotechnology

Genes and Disease: Cancer

Principles of Evolution

Principles of Ecology

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