Question 1

Double-blind studies are especially useful in

Accepted Answer

A)   Genetic experiments
B)   Health studies
C)   Statistical analysis
D)   Opinion surveys
E)   Double-blind studies are not useful in any situation

Question 2

Proof in science is always

Accepted Answer

A)   Firmly established
B)   Beyond question
C)   An impossible goal
D)   constantly changing with little contiunity between diciplines.
E)   Open to question or new evidence E

Question 3

Homeostasis refers to

Accepted Answer

A)   a tendency to change.
B)   equilibrium.
C)   spatial homogeneity.
D)   the environment.

Question 4

In the above scenario, why did Susan place the plants in a greenhouse and control the amount of sunlight and temperature?

Accepted Answer

A)   Keeping any factor that can influence a plant's growth, other than fertilizer, equal to all plants, ensures that if there is a difference at the end, it will most likely be due to the fertilizer.
B)   It was an easy place to keep the plants.
C)   It did not make a difference. The fertilizer would have influence growth even if the plants were part in sunlight and part in shade.
D)   The plants would have adapted to the situation no matter if the temperatures is different.

Question 5

The process of science is characterized by all of the following except

Accepted Answer

A)   that science attempts to keep explanations as simple as possible.
B)   that science normally provides absolute proof.
C)   that science attempts to be objective.
D)   that science is inherently skeptical.

Question 6

Sometimes severe disturbances can lead to a ______, in which conditions do not return to normal.

Accepted Answer

A)   paradigm shift
B)   state shift
C)   feedback loop
D)   system

Question 7

If something cannot be directly experimented upon, it is not considered to be a part of science.

Accepted Answer

A) True 
 B)False

Question 8

Ideally, science

Accepted Answer

A)   Always has the right answers
B)   Tells us what we expected to find
C)   Uses new technology
D)   Is orderly and methodical
E)   Proves that our hypotheses are correct

Question 9

An important value of science is that it provides the methodology to prove that a theory is correct.

Accepted Answer

A) True 
 B)False  False

Question 10

A scientific consensus

Accepted Answer

A)   is typically broad in its statements.
B)   uses feedback from many scientists.
C)   can lead to paradigm shifts.
D)   All of these answers are correct.

Question 11

In an ecosystem, throughput can refer to

Accepted Answer

A)   matter that flows into the system but not out.
B)   energy that originates in the system and flows out.
C)   something that can expand the size of state variables.
D)   the equilibrium state.

Question 12

Although your sister is not a scientist, she says that she uses scientific techniques in her everyday life. You do not believe her but she insists it is true. Which of the following examples could she use to best persuade you?

Accepted Answer

A)   When she cooks, she measures ingredients and puts them together to form something else (e.g., a cake) 
B)   When she drives in her car, she hypothesizes about things (e.g., when the red light will turn green) 
C)   She put some tomatoes in the sun and some in the shade to see if the sun causes them to ripen faster
D)   She buys a brand of toothpaste based on statistical data (four out of five dentists recommend it) 
E)   All of these are examples of using scientific techniques in her everyday life

Question 13

Statistical tests

Accepted Answer

A)   provide us with raw numbers such as the number of people in a given city.
B)   focus on determining the probability that observed phenomena occurred by chance.
C)   are only used in science to influence political decision-making.
D)   provide only fake numbers.

Question 14

Ecological systems often undergo periodic disturbances

Accepted Answer

A)   such as floods and fires.
B)   and show resilience when they recover quickly.
C)   only in arid environments.
D)   such as floods, fires, and show resilience when they recover quickly.

Question 15

Which of the following is not an example of a disturbance in an ecosystem?

Accepted Answer

A)   Fire
B)   Drought
C)   Flash flood
D)   Shade D

Question 16

Experiments in which conditions are deliberately altered and all other variables are held constant are known as ___________ experiments.

Accepted Answer

A)   Manipulative
B)   Natural
C)   Hypothetical
D)   Probability
E)   Double-blind

Question 17

_________________ is a process for producing knowledge methodically and logically.

Accepted Answer

A)   Universalism
B)   Science
C)   Relativism
D)   Morality
E)   Parsimony

Question 18

In science, a theory is

Accepted Answer

A)   speculative and unsupported by facts.
B)   a tentative explanation, comparable to a hypothesis.
C)   an explanation supported by a substantial body of evidence.
D)   something that can never be proven wrong.

Question 19

The process by which science works is useful to the general public as well as to scientists.

Accepted Answer

A) True 
 B)False

Question 20

In experimentation, dependent variables are also known as _____________ variables.

Accepted Answer

A)   Conventional
B)   Blind
C)   Response
D)   Model
E)   Distribution

Exam 2: Principles of Science and Systems

Double-blind studies are especially useful in

Correct AnswerverifiedShow Answer

Proof in science is always

Correct AnswerverifiedE

Homeostasis refers to

Correct AnswerverifiedShow Answer

In the above scenario, why did Susan place the plants in a greenhouse and control the amount of sunlight and temperature?

Correct AnswerverifiedShow Answer

The process of science is characterized by all of the following except

Correct AnswerverifiedShow Answer

Sometimes severe disturbances can lead to a ______, in which conditions do not return to normal.

Correct AnswerverifiedShow Answer

If something cannot be directly experimented upon, it is not considered to be a part of science.

Correct AnswerverifiedShow Answer

Ideally, science

Correct AnswerverifiedShow Answer

An important value of science is that it provides the methodology to prove that a theory is correct.

Correct AnswerverifiedFalse

A scientific consensus

Correct AnswerverifiedShow Answer

In an ecosystem, throughput can refer to

Correct AnswerverifiedShow Answer

Although your sister is not a scientist, she says that she uses scientific techniques in her everyday life. You do not believe her but she insists it is true. Which of the following examples could she use to best persuade you?

Correct AnswerverifiedShow Answer

Statistical tests

Correct AnswerverifiedShow Answer

Ecological systems often undergo periodic disturbances

Correct AnswerverifiedShow Answer

Which of the following is not an example of a disturbance in an ecosystem?

Correct AnswerverifiedD

Experiments in which conditions are deliberately altered and all other variables are held constant are known as ___________ experiments.

Correct AnswerverifiedShow Answer

_________________ is a process for producing knowledge methodically and logically.

Correct AnswerverifiedShow Answer

In science, a theory is

Correct AnswerverifiedShow Answer

The process by which science works is useful to the general public as well as to scientists.

Correct AnswerverifiedShow Answer

In experimentation, dependent variables are also known as _____________ variables.

Correct AnswerverifiedShow Answer

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E

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False

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D

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