Question 1

Which of the following is NOT considered a characteristic of living things?

Accepted Answer

Ability to be composed of silicon-based molecules

Question 2

Place the following biological levels in the correct order from smallest to largest: Organ, Molecule, Biosphere, Cell, Tissue, Organism.

Accepted Answer

Molecule, Cell, Tissue, Organ, Organism, Biosphere

Question 3

Which statement best illustrates the concept that structure relates to function in biology?

Accepted Answer

Red blood cells are round to maximize their surface area for gas exchange.

Question 4

In an ecosystem, which of the following best describes the role of producers?

Accepted Answer

They convert solar energy into chemical energy through photosynthesis.

Question 5

Which of the following nutrients is most directly involved in building cellular membranes?

Accepted Answer

Lipids

Question 6

Which step in the scientific method involves forming a testable explanation for an observation?

Accepted Answer

Forming a hypothesis

Question 7

In a controlled experiment, what is the purpose of the control group?

Accepted Answer

To serve as a baseline for comparison with the experimental group

Question 8

Which of the following best describes inductive reasoning?

Accepted Answer

Drawing general conclusions from specific observations

Question 9

A scientist observes that all swans she has seen are white and concludes that all swans are white. This is an example of:

Accepted Answer

Inductive reasoning

Question 10

Which of the following is a quantitative observation?

Accepted Answer

The plant grew 5 cm in one week.

Question 11

A population of rabbits is introduced into an environment with abundant food and no predators. Which of the following equations best models the initial population growth?

Accepted Answer

$$N_t = N_0$ e$$^{rt}$$

Question 12

If a scientist proposes a hypothesis that is not supported by experimental data, what is the next logical step?

Accepted Answer

Revise the hypothesis and test again

Question 13

Which of the following is an example of a scientific theory?

Accepted Answer

Cell Theory

Question 14

In the experiment by Hoji Hoekstra and colleagues, what was the main hypothesis being tested?

Accepted Answer

Coat color in mice affects their survival in different habitats

Question 15

Which of the following best describes the difference between a hypothesis and a theory?

Accepted Answer

A hypothesis is a testable statement; a theory is a well-supported explanation

Question 16

Which of the following is an example of a control variable in a plant growth experiment?

Accepted Answer

Amount of water given to each plant

Question 17

Which of the following is a qualitative observation?

Accepted Answer

The solution turned blue after adding the reagent.

Question 18

Which of the following best describes the difference between deductive and inductive reasoning?

Accepted Answer

Deductive reasoning applies general principles to specific cases; inductive reasoning draws general conclusions from specific observations.

Question 19

Which of the following is NOT a step in the scientific method?

Accepted Answer

Ignoring contradictory evidence

Question 20

A scientist wants to test the effect of temperature on enzyme activity. Which variable should be manipulated?

Accepted Answer

Temperature

Foundations of Biology: Study Guide and Key Concepts

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