Bio Unit 1 Assessment Review

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What is homeostasis?

Back

Homeostasis is the organism's ability to maintain steady (stable) internal conditions despite changes in the external environment.

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What is a control group in an experiment?

Back

A control group is a standard of comparison in an experiment, which does not receive the experimental treatment. For example, plants that receive no light in a light effect experiment.

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What is the dependent variable in an experiment?

Back

The dependent variable is the outcome that is measured in an experiment. For example, the growth of the plant in an experiment testing the effect of water.

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What is a negative feedback loop?

Back

A negative feedback loop is a process that counteracts changes in a system, making it more stable.

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What is the purpose of shivering in cold environments?

Back

Shivering helps to increase body temperature by generating heat through muscle activity.

Front

What is the independent variable in an experiment?

Back

The independent variable is the factor that is manipulated or changed in an experiment. For example, the amount of water given to plants.

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What does it mean to regulate blood pressure?

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Regulating blood pressure involves maintaining it within a normal range to ensure proper blood flow and function of organs.

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What is the significance of a hypothesis in scientific experiments?

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A hypothesis is a testable prediction about the relationship between variables in an experiment.

Front

What is the scientific method?

Back

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

Front

What is the role of light in photosynthesis?

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Light provides the energy needed for plants to convert carbon dioxide and water into glucose and oxygen.