BioA Unit One

The study of life.

• biology
• biosphere
• DNA
• metabolism

Signal that requires a response.

• metabolism
• bioshere
• stimulus
• DNA

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Maintaining a stable internal environment.

• Homeostasis
• Metabolism
• Stimulus
• DNA

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An organism made of one cell is called

• unicellular
• multicellular

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Which one of the following is a characteristic of life?

• Growth
• Breathing
• Expelling toxins
• Photosynthesis

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Which one of the following is a characteristic of life?

• Photosynthesis
• Adapting to your environment/ surroundings
• Expelling toxins
• Breathing

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The basic unit of life is called a (n)

• atom
• compound
• cell
• energy

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Keeping your internal body temperature the same is called

• excretion
• homeostasis
• respiration
• metabolism

In order to be considered living an organism must have

• blood
• cells
• brains
• hair

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A worm turns away from light is an example of a worm

• reproducing
• doing cellular respiration
• having cells
• responding to its environment

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