Question 1

Which of the following best describes an emergent property in biological systems?

Accepted Answer

A property that arises only when individual components interact at higher levels of organization.

Question 2

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

Accepted Answer

Archaea and Eukarya share a more recent common ancestor with each other than with Bacteria.

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. Which of the following best describes the group that does not receive the fertilizer?

Accepted Answer

Control group

Question 4

Which of the following is an example of deductive reasoning in scientific inquiry?

Accepted Answer

Predicting that if a plant receives sunlight, then it will perform photosynthesis, based on the general principle that sunlight is required for photosynthesis.

Question 5

Which of the following best explains why DNA is considered the molecule of inheritance in all organisms?

Accepted Answer

DNA stores genetic information that is passed from parent to offspring during reproduction.

Question 6

A student is designing an experiment to test the effect of temperature on enzyme activity. Which variable should be the dependent variable?

Accepted Answer

The rate of enzyme activity measured

Question 7

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

Accepted Answer

Molecule, cell, tissue, organ, organism

Question 8

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

Accepted Answer

A hypothesis is a tentative explanation that can be tested, while a theory is a well-substantiated explanation supported by extensive evidence.

Question 9

Which of the following is an example of quantitative data?

Accepted Answer

The plant grew 5 centimeters in one week.

Question 10

A researcher observes that a certain antibiotic kills bacteria but not human cells. Which property of life does this observation most directly relate to?

Accepted Answer

Unity and diversity of life

Question 11

Which of the following best describes the process of natural selection?

Accepted Answer

Organisms with inherited traits that are better suited to the environment are more likely to survive and reproduce.

Question 12

In a controlled experiment, why is it important to have only one independent variable?

Accepted Answer

To ensure that the results are due to the variable being tested and not other factors.

Question 13

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

Accepted Answer

Ability to move from place to place

Question 14

A scientist proposes that 'if a plant receives more sunlight, then it will grow taller.' What part of the scientific method does this statement represent?

Accepted Answer

A hypothesis

Question 15

Which of the following best explains why scientific hypotheses cannot be proven, only supported or refuted?

Accepted Answer

Because new evidence may arise that contradicts the hypothesis.

Question 16

Which of the following is an example of a controlled variable in an experiment testing the effect of fertilizer on plant growth?

Accepted Answer

The type of plant used in all groups

Question 17

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

Accepted Answer

A hypothesis is a tentative explanation that can lead to the development of a theory after repeated testing and validation.

Question 18

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

Accepted Answer

Predicting that all mammals have hair because you have observed that dogs, cats, and rabbits have hair.

Question 19

A biologist collects data on the number of offspring produced by different bird species in a forest. Which type of data is this?

Accepted Answer

Quantitative data

Question 20

Which of the following best explains why biology is considered a science?

Accepted Answer

Because it involves the study of living things using observation, experimentation, and evidence-based reasoning.

Evolution, the Themes of Biology, and Scientific Inquiry: Study Notes

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