Chapter 1: The Study of Life

What is testable explanation?

• observation

• hypothesis

• experiment

• constant

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Which is not a characteristic of all organisms?

• made of one or more cells

• grows and develop

• maintains homeostasis

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What is science?

Some species of plants begin opening their

flowers in the morning when they are exposed

to sunlight. What characteristic of living things

does this represent?

• acquiring energy

• adapting to the environment

• displaying organization

• responding to stimuli

What process regulates an organism’s internal

conditions and keeps them stable?

• adaptation

• equilibrium

• homeostasis

• metabolism

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What is a theory?

Scientists discard observations and data that are not consistent with current scientific understanding.

• true

• false

What is a hypothesis?

What do biologists do?

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Living things are made of one or more cells

• true

• false

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