Question 1

Which of the following best illustrates the concept of emergent properties in biology?

Accepted Answer

A functioning heart can pump blood, but individual heart cells cannot.

Question 2

Which of the following is NOT one of the seven properties common to all life?

Accepted Answer

Ability to photosynthesize

Question 3

A scientist is testing the effect of a new fertilizer on plant growth. She sets up two groups: one receives the fertilizer, and the other does not. She measures the height of the plants after four weeks. In this experiment, what is the dependent variable?

Accepted Answer

The height of the plants

Question 4

Which of the following correctly lists the levels of biological organization from smallest to largest?

Accepted Answer

Molecule, organelle, cell, tissue, organ, organ system, organism, population, community, ecosystem, biosphere

Question 5

Which of the following statements about the three domains of life is correct?

Accepted Answer

Archaea often live in extreme environments, while Bacteria are more common in moderate environments.

Question 6

Which of the following best describes a controlled experiment?

Accepted Answer

An experiment in which only one variable is changed while all others are kept constant.

Question 7

Which of the following is an example of artificial selection?

Accepted Answer

Humans breeding dogs for specific traits such as size or temperament.

Question 8

A researcher proposes that increasing temperature will increase the rate of enzyme activity. This statement is best described as a:

Accepted Answer

Hypothesis

Question 9

Which of the following best defines 'systems biology'?

Accepted Answer

The study of how parts of a biological system interact to give rise to the function and behavior of that system.

Question 10

Which of the following is an example of gene expression?

Accepted Answer

A DNA sequence is transcribed and translated to produce a protein.

Question 11

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

Accepted Answer

A theory is a well-supported explanation that integrates a broad range of observations, while a hypothesis is a testable prediction.

Question 12

Which of the following is the best example of evolution by natural selection?

Accepted Answer

A population of insects becomes resistant to a pesticide over several generations.

Question 13

In a scientific experiment, which variable is manipulated by the researcher?

Accepted Answer

Independent variable

Question 14

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

Accepted Answer

Ignoring contradictory evidence

Question 15

Which of the following best describes the biosphere?

Accepted Answer

All the ecosystems on Earth

Question 16

A scientist collects data on the growth rates of plants under different light conditions. Which of the following best defines 'data' in this context?

Accepted Answer

The measured growth rates of the plants

Question 17

Which of the following is an example of a community in biology?

Accepted Answer

All the living organisms (plants, animals, bacteria, etc.) in a forest

Question 18

Which of the following best describes an organelle?

Accepted Answer

A membrane-bound structure within a cell that performs a specific function

Question 19

Which of the following is a real-world example of technology as defined in biology?

Accepted Answer

Using CRISPR to edit genes in crops for improved yield

Question 20

A researcher is studying the effect of a drug on heart rate in mice. She measures the heart rate before and after administering the drug. Which of the following best describes the structure of this controlled experiment?

Accepted Answer

The researcher uses two groups: one receives the drug (experimental group), and the other does not (control group), and both groups' heart rates are measured.

Chapter 1: Biology—The Study of Scientific Life (Study Guide & Key Concepts)

Study Guide - Practice Questions

Study Guide - Flashcards