Ch. 1 Test Review Biology

Front

What is a stimulus in biology?

Back

A stimulus is any change in the environment that causes a response in an organism.

Front

What is a response in biology?

Back

A response is the reaction of an organism to a stimulus.

Front

Convert 786 mm to cm.

Back

786 mm = 78.6 cm.

Front

What do living things do?

Back

Living things respond to stimuli, maintain homeostasis, and adapt to their environment.

Front

What is the difference between an observation and an inference?

Back

An observation is a factual statement based on evidence, while an inference is a conclusion drawn from observations.

Front

What is an independent variable in an experiment?

Back

An independent variable is the factor that is changed or manipulated in an experiment.

Front

What is a dependent variable in an experiment?

Back

A dependent variable is the factor that is measured or observed in response to changes in the independent variable.

Front

Define homeostasis.

Back

Homeostasis is the process by which living organisms maintain a stable internal environment despite changes in external conditions.

Front

What is the scientific method?

Back

The scientific method is a systematic approach to inquiry that involves making observations, forming hypotheses, conducting experiments, and drawing conclusions.

Front

What is a hypothesis?

Back

A hypothesis is a testable prediction about the relationship between two or more variables.