Biology 1st Summative 2025

Biology is the study of:

• the environment and weather patterns.

• living things and their interactions.

• rocks, minerals, and the Earth's crust.

• chemicals and their reactions.

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

• Reproduction

• Movement from place to place

• Response to stimuli

• Maintenance of homeostasis

A plant growing towards a light source is an example of which characteristic of life?

• Growth and development

• Response to stimuli

• Reproduction

• Adaptation

The process by which organisms maintain a stable internal environment is called:

• Metabolism

• Homeostasis

• Development

• Organization

A well-supported explanation of natural phenomena that has been repeatedly tested and confirmed is a:

• Hypothesis

• Law

• Theory

• Fact

The primary difference between a theory and a law is that a law:

• is more likely to be true.

• describes what happens, while a theory explains why.

• can become a theory with enough evidence.

• is based on opinions, not facts.

The key characteristic that distinguishes science from pseudoscience is:

• It is performed by people in lab coats.

• It is based on empirical evidence and testing.

• It involves complex calculations.

• It is always correct.

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In an experiment, the variable that is measured by the scientist is the:

• Control variable

• Independent variable

• Dependent variable

• Constant

A scientific hypothesis must be:

• Correct

• Observable

• Testable

• Broad

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Before scientific information is published, it is evaluated by other experts in the field. This process is called:

• Ethics

• Peer review

• Data analysis

• Pseudoscience