AnswersRVACR EcologyHypotheses, Theories, and Laws

Hypotheses, Theories, and Laws Answers

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A testable hypothesis could be formed from which question?

A
Are bass more active in the daytime than at night?
B
When whales jump out of water, are they happy?
C
Are red tulips prettier than tulips of other colors?
D
Why are gerbils more popular as pets than hamsters are?
4

The development of a new experimental method is most likely to change a theory if it makes it possible to

A
analyze samples when they are frozen.
B
perform the experiment in a different lab.
C
obtain and analyze results more quickly.
D
study a larger sample size than before.
5

The statement “force equals mass times acceleration (F=ma)” is Newton’s second law of motion. Why is this a law rather than a theory?

A
It states, rather than explains, the relationship between the variables.
B
It cannot be proven, whereas a theory can be proven.
C
It may be revised if new information shows that the relationship has changed.
D
It was classified as a law because it is related to other similar discoveries.
7

What do hypotheses, theories, and laws have in common?

A
data
B
predictions
C
explanations
D
observations
8

How does a law differ from a theory?

A
A law is a theory that has been proven to be true and universal.
B
A theory is a group of hypotheses that prove a law is true.
C
A law is a statement of fact, but a theory is an explanation.
D
A theory is a proposed law that has not yet been peer reviewed.
9

Our current understanding of evolution is called a theory because it has been

A
supported repeatedly as new discoveries have been made.
B
proven to be exactly true as originally proposed.
C
corroborated by data that were gathered during a single experiment.
D
developed from the postulates of many scientists.
10

In which situation would new technology be most likely to cause a change in an existing theory about new structures a cell?

A
The new technology makes it possible to detect and analyze a structure more rapidly.
B
The new technology allows scientists to confirm the presence of an existing structure in a cell.
C
The new technology makes it possible to produce additional structures that were not previously there.
D
The new technology allows detection of a structure that could not be detected previously.

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