Question 1

Which of the following best describes the scientific method as used in biology?

Accepted Answer

A flexible process of inquiry involving observation, hypothesis formation, experimentation, and communication.

Question 2

Which statement correctly distinguishes a theory from a hypothesis in scientific inquiry?

Accepted Answer

A theory is a well-supported hypothesis that links together a large body of observations and yields unvarying evidence, while a hypothesis is a testable prediction.

Question 3

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

Accepted Answer

Presence of organelles

Question 4

A scientist observes that plants grow faster in sunlight than in shade. She forms a hypothesis and designs an experiment with a control group and an experimental group. What is the next step according to the scientific method?

Accepted Answer

Compare the data collected from both groups.

Question 5

Which reasoning process starts with a general principle and applies it to specific cases?

Accepted Answer

Deductive reasoning

Question 6

Which of the following best illustrates homeostasis in a human body?

Accepted Answer

Sweating to cool down when body temperature rises.

Question 7

Which statement about metabolism is correct?

Accepted Answer

Metabolism is the sum of all chemical reactions and energy transformations in an organism.

Question 8

A student claims that scientific models can prove theories true. Which is the best response based on the scientific method?

Accepted Answer

Scientific models can only be proven false, never absolutely true.

Question 9

Which of the following is an example of a stimulus for a plant?

Accepted Answer

A change in light intensity.

Question 10

Which of the following best describes the role of DNA in living organisms?

Accepted Answer

DNA contains instructional codes that influence heredity and are virtually the same in all living organisms.

Question 11

Which of the following is a correct sequence from largest to smallest in the levels of biological organization?

Accepted Answer

Ecosystem, Community, Population, Organism

Question 12

A researcher is testing a new drug and wants to avoid placebo effects. Which step of the scientific method is most relevant here?

Accepted Answer

Being careful of placebo effect during experimentation

Question 13

Which of the following is an example of inductive reasoning in biology?

Accepted Answer

Summarizing many observations to create a general principle.

Question 14

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

Accepted Answer

Ignoring data that does not fit the hypothesis

Question 15

Which of the following best explains why scientific predictions cannot include the supernatural?

Accepted Answer

Supernatural events cannot be tested or measured using scientific methods.

Question 16

A multicellular organism transfers genetic information from one generation to another. Which molecule is primarily responsible for this process?

Accepted Answer

DNA

Question 17

Which of the following is a correct statement about cell theory?

Accepted Answer

Cells are the basic unit of life, both in structure and function.

Question 18

Which of the following equations best represents the concept of metabolism in living organisms?

Accepted Answer

$$	ext{Metabolism} = 	ext{Catabolism} + 	ext{Anabolism}$$

Question 19

A scientist wants to test the effect of temperature on enzyme activity. She sets up two groups: one at 25°C and one at 37°C. What is the control group in this experiment?

Accepted Answer

The group at 25°C

Question 20

Which of the following best describes the biosphere?

Accepted Answer

Most regions of land, most bodies of water, and several kilometers of atmosphere where life exists.

ch. 1 study guide

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