Question 1

Which of the following best illustrates science based on exploration rather than experimentation?

Accepted Answer

Describing a new bird species discovered in the Philippines.

Question 2

Which of the following is the best example of a scientific hypothesis?

Accepted Answer

If coral snakes are present, king snakes that mimic their coloration will be attacked less often by predators.

Question 3

Darwin’s theory of natural selection is best described as:

Accepted Answer

Some heritable traits of a population are selected for or against by environmental conditions.

Question 4

Which of the following is a sign that a work is truly scientific?

Accepted Answer

Many cited references.

Question 5

Within all living organisms, metabolism allows them to:

Accepted Answer

Both convert energy and recycle matter.

Question 6

In an experiment testing the hypothesis that coral snake coloration warns off predators, which artificial snake models should be used?

Accepted Answer

Brown artificial snakes and artificial snakes with red, yellow, and black rings.

Question 7

Scientists place artificial king snakes in two areas: one with coral snakes and one without. The attack rate is 65% in the area with coral snakes and 7% in the area without. This data:

Accepted Answer

Supports hypothesis 3 (the benefit to king snakes depends on coral snakes’ presence).

Question 8

Based on the data that mimic king snakes are attacked less often inside the range of coral snakes, which prediction is most logical?

Accepted Answer

King snakes living with coral snakes will resemble coral snakes more than king snakes living without coral snakes.

Question 9

Which is the largest unit of organization in living things?

Accepted Answer

Biosphere

Question 10

The flow of information in a living organism typically goes from:

Accepted Answer

DNA to proteins

Question 11

Which of the following best describes the cycling of nutrients in an ecosystem?

Accepted Answer

Nutrients are cycled between producers, consumers, and decomposers.

Question 12

A student claims that all scientific discoveries require controlled experiments. Which scenario best refutes this claim?

Accepted Answer

Describing a new species based on field observations.

Question 13

Which of the following is NOT a sign that a work is truly scientific?

Accepted Answer

No external review.

Question 14

Which of the following best describes the relationship between energy and matter in an ecosystem?

Accepted Answer

Energy flows through the ecosystem and matter cycles.

Question 15

Which of the following is a real-world example of mimicry providing a survival advantage?

Accepted Answer

A non-poisonous king snake resembling a poisonous coral snake.

Question 16

Which of the following is a critical reason for citizens to understand science in modern society?

Accepted Answer

To effectively participate in a representative society.

Question 17

If the flow of information in a cell is disrupted between DNA and proteins, which process is most directly affected?

Accepted Answer

Gene expression

Question 18

A scientist finds that king snakes outside the range of coral snakes are attacked more often than those inside the range. What does this suggest about mimicry?

Accepted Answer

Mimicry is more effective where the model species (coral snake) is present.

Question 19

Which of the following best describes the scientific method?

Accepted Answer

A flexible process involving observation, hypothesis formation, experimentation, and analysis.

Question 20

Which of the following is an example of energy conversion in living organisms?

Accepted Answer

A plant converting sunlight into chemical energy during photosynthesis.

Study Guidance for Campbell Essential Biology Chapter 1: Learning About Life

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