Question 1

Liquid,solid,and gas are

Accepted Answer

A)  physical forms of matter. 
B)  chemical forms of matter. 
C)  mixtures. 
D)  compounds. 
E)  forms of energy.

Question 2

The portion of the atmosphere responsible for filtering out harmful ultraviolet radiation is called the

Accepted Answer

A)  troposphere. 
B)  stratosphere. 
C)  biosphere. 
D)  hydrosphere. 
E)  ecosphere.

Question 3

A possible explanation of what is observed in nature or the results of an experiment is called a scientific ____________________.

Accepted Answer

The answer of A possible explanation of what is observed...

Question 4

The atomic mass is equal to the sum of the

Accepted Answer

A)  neutrons and isotopes. 
B)  neutrons and electrons. 
C)  neutrons and protons. 
D)  protons, neutrons, and electrons. 
E)  protons only.

Question 5

Carbon is a major component of

Accepted Answer

A)  atmospheric gases. 
B)  sedimentary rocks. 
C)  the oceans. 
D)  organic compounds. 
E)  sandy soils.

Question 6

The most inclusive components of the biotic portion of an ecosystem are

Accepted Answer

A)  producers, consumers, and decomposers. 
B)  primary and secondary consumers. 
C)  herbivores, carnivores, and omnivores. 
D)  all nonliving chemicals or matter. 
E)  none of these answers

Question 7

All of the following human behaviors substantially affect the nitrogen cycle except

Accepted Answer

A)  addition of sewage to aquatic systems. 
B)  use of nitrogen fertilizers. 
C)  runoff from feedlots. 
D)  runoff from salt-treated icy highways. 
E)  burning of fuels.

Question 8

A deer is both a primary consumer and in the second trophic level.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following statements is incorrect?

Accepted Answer

A)  Scientific laws are descriptions of nature with no known exceptions. 
B)  Hypotheses explain observed scientific data. 
C)  A hypothesis tested many times by reproducible controlled experiments becomes a scientific theory. 
D)  The law of gravity is a scientific law. 
E)  A tentative explanation that needs further evaluation is a scientific theory.

Question 10

Which of the following is not an example of an organic compound?

Accepted Answer

A)  aspirin. 
B)  plastics. 
C)  ammonia. 
D)  limestone. 
E)  sugar.

Question 11

We can never recycle or reuse high quality energy.

Accepted Answer

A) True 
 B)False

Question 12

-What is depicted in this image?

Accepted Answer

The answer of 
-What is depicted in this image?...

Question 13

-On the food chain figure,choose the level that primarily feeds on producers.

Accepted Answer

The answer of 
-On the food chain figure,choose the level...

Question 14

____________________ explains why we cannot get more energy out of physical or chemical change than we put in.

Accepted Answer

The answer of ____________________ explains why we cannot get more...

Question 15

-On the food chain figure,choose the level that includes hawks,tigers,and white sharks.

Accepted Answer

The answer of 
-On the food chain figure,choose the level...

Question 16

In food chains,energy moves from one source to the next,resulting in a loss of useful energy to the environment as heat.This energy in the biosphere is usually replaced by

Accepted Answer

A)  the sun. 
B)  decomposers. 
C)  other organisms. 
D)  plants. 
E)  animals.

Question 17

Matter is anything that

Accepted Answer

A)  has mass and occupies space. 
B)  has the capacity to do work. 
C)  can be changed in form. 
D)  can produce change. 
E)  moves mass.

Question 18

-Which of the ecosystems depicted have the greatest net primary productivity?

Accepted Answer

The answer of 
-Which of the ecosystems depicted have the...

Question 19

Ecology is the study of connections in the natural world.

Accepted Answer

A) True 
 B)False

Question 20

Which of the following is not one of the common phosphorus reservoirs in the ecosystem?

Accepted Answer

A)  water 
B)  organisms 
C)  atmosphere 
D)  rocks 
E)  marine sediment

Exam 2: Science, Matter, Energy, and Systems

Liquid,solid,and gas are

The portion of the atmosphere responsible for filtering out harmful ultraviolet radiation is called the

A possible explanation of what is observed in nature or the results of an experiment is called a scientific ____________________.

The atomic mass is equal to the sum of the

Carbon is a major component of

The most inclusive components of the biotic portion of an ecosystem are

All of the following human behaviors substantially affect the nitrogen cycle except

A deer is both a primary consumer and in the second trophic level.

Which of the following statements is incorrect?

Which of the following is not an example of an organic compound?

We can never recycle or reuse high quality energy.

-What is depicted in this image?

-On the food chain figure,choose the level that primarily feeds on producers.

____________________ explains why we cannot get more energy out of physical or chemical change than we put in.

-On the food chain figure,choose the level that includes hawks,tigers,and white sharks.

In food chains,energy moves from one source to the next,resulting in a loss of useful energy to the environment as heat.This energy in the biosphere is usually replaced by

Matter is anything that

-Which of the ecosystems depicted have the greatest net primary productivity?

Ecology is the study of connections in the natural world.

Which of the following is not one of the common phosphorus reservoirs in the ecosystem?