Question 1

A chemical formula is a shorthand way of writing the symbols for atoms or ions in a compound.

Accepted Answer

A) True 
 B)False

Question 2

What are two or more processes interacting such that the combined effect is greater than the sum of the individual effects?

Accepted Answer

A) homeostasis 
B) synergistic interaction 
C) negative feedback 
D) entropy 
E) time delay 
A) homeostasis 
B) synergistic interaction 
C) negative feedback 
D) entropy 
E) time delay

Question 3

Which law states that no energy can be created or destroyed?

Accepted Answer

A) The first law of thermodynamics 
B) The second law of thermodynamics 
C) The law of conservation of matter 
D) The environmental exchange law 
E) The law of homeostasis 
A) The first law of thermodynamics 
B) The second law of thermodynamics 
C) The law of conservation of matter 
D) The environmental exchange law 
E) The law of homeostasis

Question 4

Differentiate between a hypothesis, a guess, and a theory. Explain why it is important for non-scientists to understand how scientists use these terms when discussing something like global warming or evolution. Why might it be incorrect when a non-scientist dismisses a topic like these as being "just a theory"?

Accepted Answer

A hypothesis is an effort to explain phe

Question 5

When an overwhelming body of observations and measurements supports a scientific hypothesis or group of related hypotheses, it becomes a(n)____.

Accepted Answer

A) hypothesis 
B) scientific law 
C) scientific variable 
D) scientific theory 
E) conclusion 
A) hypothesis 
B) scientific law 
C) scientific variable 
D) scientific theory 
E) conclusion

Question 6

Protons, neutrons, and electrons are all ____.

Accepted Answer

A) forms of energy 
B) equal in mass 
C) subatomic particles 
D) negative ions 
E) charged particles 
A) forms of energy 
B) equal in mass 
C) subatomic particles 
D) negative ions 
E) charged particles

Question 7

Thousands of genes make up a single _______________, a double helix DNA molecule wrapped around proteins.

Accepted Answer

The answer of Thousands of genes make up a single...

Question 8

Isotopes are forms of an element that differ from one another by having different ____.

Accepted Answer

A) atomic numbers 
B) numbers of electrons 
C) numbers of protons 
D) mass numbers 
E) electrical charges 
A) atomic numbers 
B) numbers of electrons 
C) numbers of protons 
D) mass numbers 
E) electrical charges

Question 9

Thousands of genes make up a single ____.

Accepted Answer

A) chromosome 
B) DNA 
C) cell nucleus 
D) trait 
E) organism 
A) chromosome 
B) DNA 
C) cell nucleus 
D) trait 
E) organism

Question 10

Complex carbohydrates are a type of ____.

Accepted Answer

A) lipid 
B) chemical formula 
C) monomer 
D) protein 
E) organic polymer 
A) lipid 
B) chemical formula 
C) monomer 
D) protein 
E) organic polymer

Question 11

Matter is anything that ____.

Accepted Answer

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

Question 12

A negative feedback loop causes a system to further change in the same direction.

Accepted Answer

A) True 
 B)False

Question 13

Electromagnetic energy travels in _____.

Accepted Answer

A) waves 
B) packets 
C) nodes 
D) modules 
E) chunks 
A) waves 
B) packets 
C) nodes 
D) modules 
E) chunks

Question 14

A community knows the effects of chemical X when it is used alone. They also know the same for chemical Z, so they set safe limits for use for both chemicals. When the chemicals are released at safe levels on the same day, there is a massive fish kill. What is the most likely explanation?

Accepted Answer

A) homeostasis 
B) synergistic interaction 
C) negative feedback 
D) positive feedback 
E) entropy 
A) homeostasis 
B) synergistic interaction 
C) negative feedback 
D) positive feedback 
E) entropy

Question 15

Energy can be formally defined as ____.

Accepted Answer

A) the random motion of molecules 
B) the ability to do work and transfer heat 
C) a force that is exerted over some distance 
D) the movement of molecules 
E) the loss of matter 
A) the random motion of molecules 
B) the ability to do work and transfer heat 
C) a force that is exerted over some distance 
D) the movement of molecules 
E) the loss of matter

Question 16

In a nuclear fission reaction, atoms are destroyed.

Accepted Answer

A) True 
 B)False

Question 17

What is the distinct piece of DNA containing instructions for making proteins?

Accepted Answer

A) chromosome 
B) nucleotide 
C) amino acid 
D) cell membrane 
E) hydrocarbon 
A) chromosome 
B) nucleotide 
C) amino acid 
D) cell membrane 
E) hydrocarbon

Question 18

Body fat of a human or other animal is a type of ____________________ energy.

Accepted Answer

The answer of Body fat of a human or other...

Question 19

Methane, a hydrocarbon, is considered an organic molecule even though it contains only one carbon atom.

Accepted Answer

A) True 
 B)False

Question 20

When someone says that evolution is not important, "after all, it's just a theory," it is probable that they do not understand how scientists use the term "theory."

Accepted Answer

A) True 
 B)False

A chemical formula is a shorthand way of writing the symbols for atoms or ions in a compound.

What are two or more processes interacting such that the combined effect is greater than the sum of the individual effects?

Which law states that no energy can be created or destroyed?

When an overwhelming body of observations and measurements supports a scientific hypothesis or group of related hypotheses, it becomes a(n)____.

Protons, neutrons, and electrons are all ____.

Thousands of genes make up a single _______________, a double helix DNA molecule wrapped around proteins.

Isotopes are forms of an element that differ from one another by having different ____.

Thousands of genes make up a single ____.

Complex carbohydrates are a type of ____.

Matter is anything that ____.

A negative feedback loop causes a system to further change in the same direction.

Electromagnetic energy travels in _____.

A community knows the effects of chemical X when it is used alone. They also know the same for chemical Z, so they set safe limits for use for both chemicals. When the chemicals are released at safe levels on the same day, there is a massive fish kill. What is the most likely explanation?

Energy can be formally defined as ____.

In a nuclear fission reaction, atoms are destroyed.

What is the distinct piece of DNA containing instructions for making proteins?

Body fat of a human or other animal is a type of ____________________ energy.

Methane, a hydrocarbon, is considered an organic molecule even though it contains only one carbon atom.

When someone says that evolution is not important, "after all, it's just a theory," it is probable that they do not understand how scientists use the term "theory."

Environmental Problems, Their Causes, and Sustainability

Ecosystems: What Are They and How Do They Work

Biodiversity and Evolution

Biodiversity, Species Interactions, and Population Control

The Human Population and Its Impact

Climate and Biodiversity

Aquatic Biodiversity

Sustaining Biodiversity: The Species Approach

Sustaining Terrestrial Biodiversity: The Ecosystem Approach

Sustaining Aquatic Biodiversity

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Exam 2: Science, Matter, Energy, and Systems

A chemical formula is a shorthand way of writing the symbols for atoms or ions in a compound.

What are two or more processes interacting such that the combined effect is greater than the sum of the individual effects?

Which law states that no energy can be created or destroyed?

When an overwhelming body of observations and measurements supports a scientific hypothesis or group of related hypotheses, it becomes a(n)____.

Protons, neutrons, and electrons are all ____.

Thousands of genes make up a single _______________, a double helix DNA molecule wrapped around proteins.

Isotopes are forms of an element that differ from one another by having different ____.

Thousands of genes make up a single ____.

Complex carbohydrates are a type of ____.

Matter is anything that ____.

A negative feedback loop causes a system to further change in the same direction.

Electromagnetic energy travels in _____.

A community knows the effects of chemical X when it is used alone. They also know the same for chemical Z, so they set safe limits for use for both chemicals. When the chemicals are released at safe levels on the same day, there is a massive fish kill. What is the most likely explanation?

Energy can be formally defined as ____.

In a nuclear fission reaction, atoms are destroyed.

What is the distinct piece of DNA containing instructions for making proteins?

Body fat of a human or other animal is a type of ____________________ energy.

Methane, a hydrocarbon, is considered an organic molecule even though it contains only one carbon atom.

When someone says that evolution is not important, "after all, it's just a theory," it is probable that they do not understand how scientists use the term "theory."

Environmental Problems, Their Causes, and Sustainability

Ecosystems: What Are They and How Do They Work

Biodiversity and Evolution

Biodiversity, Species Interactions, and Population Control

The Human Population and Its Impact

Climate and Biodiversity

Aquatic Biodiversity

Sustaining Biodiversity: The Species Approach

Sustaining Terrestrial Biodiversity: The Ecosystem Approach

Sustaining Aquatic Biodiversity

Filters