Question 1

Which of the following best explains why the beach mouse’s coat color matches its sandy habitat?

Accepted Answer

The mouse’s coat color is a result of evolution through natural selection, allowing it to blend into its environment and avoid predators.

Question 2

Which unifying theme of biology is best illustrated by the fact that a mouse’s heart is made up of tissues, which are made up of cells, which are made up of molecules?

Accepted Answer

Organization

Question 3

A plant is eaten by a mouse, and the mouse is preyed upon by a hawk. This scenario best illustrates which biological theme?

Accepted Answer

Interactions within biological systems

Question 4

Which of the following is the best example of the theme 'Structure fits function'?

Accepted Answer

The shape of a bird’s wing enables flight.

Question 5

Which process is responsible for the unity and diversity of life on Earth?

Accepted Answer

Evolution

Question 6

Which of the following best describes the flow of energy in an ecosystem?

Accepted Answer

Energy flows one way from the sun to plants to animals.

Question 7

Which statement about matter in biological systems is correct?

Accepted Answer

Matter cycles between organisms and their environment.

Question 8

Which of the following is an example of information flow in biology?

Accepted Answer

DNA encoding the instructions for a mouse’s fur color.

Question 9

A scientist observes that mice with lighter fur survive better on sandy beaches than darker mice. What is the best hypothesis to test this observation?

Accepted Answer

Lighter fur color provides camouflage from predators in sandy habitats.

Question 10

Which of the following best describes the process of scientific inquiry?

Accepted Answer

Asking questions about the living world and seeking answers through scientific investigation.

Question 11

Why is collaboration and diverse viewpoints important in scientific progress?

Accepted Answer

They help generate new ideas and challenge existing assumptions.

Question 12

Which of the following is NOT a unifying theme of biology?

Accepted Answer

Astrology and its influence on organisms

Question 13

Which of the following best illustrates the cycling of matter in an ecosystem?

Accepted Answer

A mouse eats a plant, and its waste returns nutrients to the soil.

Question 14

Which of the following is an example of how structure fits function at the molecular level?

Accepted Answer

The double helix structure of DNA allows it to store genetic information.

Question 15

Which of the following best describes the relationship between genes and traits in an organism?

Accepted Answer

Genes encode information that determines traits such as fur color.

Introduction: Evolution and the Foundations of Biology

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