Question 1

Which of the following is NOT a property shared by all living organisms?

Accepted Answer

They can reproduce only inside a host cell.

Question 2

A scientist is testing a new medication for diabetes. In the experiment, the group receiving a sugar pill with no active ingredient is called the:

Accepted Answer

Negative control group

Question 3

Which of the following best describes the difference between a population and a community in biological organization?

Accepted Answer

A population is a group of individuals of the same species, while a community includes all interacting species in an area.

Question 4

In a controlled experiment, which variable is deliberately changed to test its effect?

Accepted Answer

Independent variable

Question 5

A researcher wants to test if a new fertilizer increases plant growth. She sets up two groups: one receives the fertilizer, the other does not. She measures plant height after 4 weeks. What is the dependent variable in this experiment?

Accepted Answer

The plant height after 4 weeks

Question 6

Which of the following is an example of a double-blind experiment?

Accepted Answer

Neither the participants nor the researchers know who receives the treatment or placebo.

Question 7

A bar graph is most appropriately used to:

Accepted Answer

Compare categories of data

Question 8

If error bars on a bar graph representing two groups do NOT overlap, what does this indicate?

Accepted Answer

There is likely a significant difference between the groups.

Question 9

Which of the following best distinguishes a scientific theory from a hypothesis?

Accepted Answer

A theory is a broad explanation supported by evidence; a hypothesis is a proposed explanation for a specific observation.

Question 10

Which of the following is an example of pseudoscience?

Accepted Answer

A claim that a device can detect disease based on skull measurements, without scientific evidence

Question 11

Which of the following is the correct order of biological organization from smallest to largest?

Accepted Answer

Atom, molecule, organelle, cell, tissue, organ, organ system, organism, population, community, ecosystem, biosphere

Question 12

A news article summarizes a recent scientific study but does not provide details about the methods or data. This article is best classified as:

Accepted Answer

A secondary source

Question 13

Which of the following is a key feature of a reliable scientific source?

Accepted Answer

It is up to date and peer-reviewed.

Question 14

A scientist observes that a certain plant grows faster in sunlight than in shade. She proposes that sunlight increases the rate of photosynthesis, leading to faster growth. This proposal is an example of:

Accepted Answer

A hypothesis

Question 15

Which of the following best describes an organelle?

Accepted Answer

A component of a cell that performs a specific function

Question 16

A clinical trial is considered double-blind if:

Accepted Answer

Neither the participants nor the researchers know who receives the treatment or placebo.

Question 17

Which of the following statements about viruses is correct?

Accepted Answer

Viruses are not alive because they do not display all properties of life.

Question 18

A scientist wants to test the effect of temperature on enzyme activity. She keeps all variables constant except temperature, and measures the rate of reaction. What is the independent variable?

Accepted Answer

The temperature

Question 19

Which of the following is an example of anecdotal evidence?

Accepted Answer

A single person's story about how a supplement improved their health

Question 20

Which of the following best describes the purpose of a positive control in an experiment?

Accepted Answer

To confirm that the experimental setup can produce a positive result

Chapter 1: An Introduction to the Science of Life – Study Notes

스터디 가이드 - 연습 문제

학습 가이드 - 플래시카드