Question 1

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

Accepted Answer

New characteristics that arise at each level of biological organization due to the arrangement and interactions of parts.

Question 2

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

Accepted Answer

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

Question 3

A scientist is testing the effect of sunlight on plant growth. She keeps all variables constant except for the amount of sunlight each plant receives. In this experiment, what is the independent variable?

Accepted Answer

The amount of sunlight each plant receives

Question 4

Which of the following statements about scientific hypotheses is TRUE?

Accepted Answer

A hypothesis is a tentative answer to a question that must be testable and falsifiable.

Question 5

Which of the following best explains why only one variable should be changed at a time in a controlled experiment?

Accepted Answer

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

Question 6

Which of the following is an example of a producer in an ecosystem?

Accepted Answer

A grass plant performing photosynthesis

Question 7

Which of the following best describes the difference between qualitative and quantitative data?

Accepted Answer

Qualitative data is descriptive, while quantitative data is numerical.

Question 8

Which of the following is the correct way to write the scientific name for humans?

Accepted Answer

$$	extit{Homo sapiens}$$

Question 9

Which domain includes organisms that are prokaryotic and often live in extreme environments?

Accepted Answer

Domain Archaea

Question 10

Which of the following is an example of the relationship between structure and function at the cellular level?

Accepted Answer

The flat shape of red blood cells increases their surface area for gas exchange.

Question 11

Which of the following best describes the flow of energy and cycling of matter in an ecosystem?

Accepted Answer

Energy flows through the ecosystem, while matter cycles.

Question 12

Which of the following is a key difference between a scientific theory and a hypothesis?

Accepted Answer

A theory is broader in scope and supported by a large body of evidence, while a hypothesis is a specific, testable statement.

Question 13

Which of the following best illustrates Darwin's concept of 'descent with modification'?

Accepted Answer

Species change over generations, giving rise to new species with adaptations to their environments.

Question 14

A researcher publishes her findings in a peer-reviewed journal. What does 'peer-reviewed' mean in this context?

Accepted Answer

Other experts in the field have evaluated her work for quality and accuracy before publication.

Question 15

Which of the following is an example of adaptation as described by Darwin's theory of natural selection?

Accepted Answer

A population of bacteria develops resistance to an antibiotic over several generations.

Question 16

Which of the following is NOT one of the seven properties of life?

Accepted Answer

Ability to move

Question 17

Which of the following best describes the main requirement for a scientific hypothesis?

Accepted Answer

It must be testable and falsifiable.

Question 18

Which of the following best explains why matching sex, age, and general health in control and experimental groups is important in experimental design?

Accepted Answer

To reduce the effect of confounding variables and ensure differences are due to the independent variable.

Question 19

Which of the following is an example of how science and technology interact?

Accepted Answer

Scientific discoveries lead to new technologies, which in turn enable further scientific research.

Question 20

Which of the following best describes the cause and effect of unequal reproductive success (fitness) in a population?

Accepted Answer

Individuals with traits better suited to the environment tend to leave more offspring, leading to adaptation over generations.

Unit 1 Biology Study Guide – Step-by-Step Guidance

Study Guide - Practice Questions

Study Guide - Flashcards