Question 1

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

Accepted Answer

They can survive and reproduce without energy.

Question 2

A scientist is studying the effect of a new fertilizer on plant growth. She sets up two groups of identical plants: one receives the fertilizer, and the other does not. Which of the following best describes the group that does NOT receive the fertilizer?

Accepted Answer

Control group

Question 3

Which of the following best explains why viruses are not considered living organisms?

Accepted Answer

They are not made of cells.

Question 4

Which of the following statements about the scientific method is CORRECT?

Accepted Answer

A theory is a hypothesis that has been repeatedly tested and not rejected.

Question 5

The global biomass of animals is approximately 2 billion tonnes of carbon. If the total global biomass is 546 billion tonnes of carbon, what percentage of Earth's biomass do animals represent?

$$	ext{Percentage} = \frac{	ext{Animal biomass}}{	ext{Total biomass}} 	imes 100$$

Accepted Answer

$$0.4\%$$

Question 6

Which of the following is an example of an adaptation that helps an organism survive in its environment?

Accepted Answer

A lizard changing color to blend into its surroundings

Question 7

Which of the following best describes the role of a model organism in biological research?

Accepted Answer

It is used to study biological processes that are difficult to investigate directly in the target organism.

Question 8

Which of the following is an example of a stimulus that an organism might respond to?

Accepted Answer

Light shining on a plant

Question 9

A researcher observes that a certain species of bird migrates earlier each year as average temperatures rise. Which property of life does this observation best illustrate?

Accepted Answer

Adaptation (evolution)

Question 10

Which of the following is the correct sequence of steps in the scientific method?

Accepted Answer

Ask a question, do background research, develop a hypothesis, test the hypothesis, analyze results, draw conclusions, report results

Question 11

Which of the following best describes homeostasis?

Accepted Answer

The maintenance of a steady internal environment

Question 12

Which of the following is a reason why larger sample sizes are preferred in biological experiments?

Accepted Answer

They provide more reliable and accurate statistical results.

Question 13

Which of the following is NOT considered science according to the study materials?

Accepted Answer

Art

Question 14

Which of the following best explains why biodiversity is important for the future?

Accepted Answer

It provides a variety of resources and potential solutions for agriculture, medicine, and energy.

Question 15

Which of the following is an example of an independent variable in a biological experiment?

Accepted Answer

The amount of fertilizer applied to plants

Question 16

Which of the following statements about the origin of life on Earth is supported by the study materials?

Accepted Answer

The first true cells appeared about 3.9 billion years ago.

Question 17

Which of the following is a correct statement about the relationship between birds and dinosaurs?

Accepted Answer

Birds are direct descendants of flying dinosaurs.

Question 18

A gene is best defined as:

Accepted Answer

A segment of DNA that contains information for a specific protein

Question 19

Which of the following is an example of how organisms adapt to their food source?

Accepted Answer

A cow having a complex digestive system to break down cellulose

Question 20

Which of the following best describes why science does not address moral questions?

Accepted Answer

Moral questions are not testable by scientific methods.

Introduction to Biology and the Scientific Method: Study Notes

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