characteristics of life

What is the most basic unit of life?

• cell
• tissue
• organ
• organ system

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The combination of chemical reactions through

which an organism builds up or breaks down

materials as it carries out its life processes is called ...

• absorption

• metabolism

• digestion

• consumption

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Maintaining a stable internal

environment is called

• homeostasis

• equilibrium

• balance

• evenness

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Fire is living because it has 6 of the 8 characteristics of life. 

• True 
• False

Which of the following is NOT a characteristic shared by all living organisms?

• Ability to move
• Ability to grow and develop
• Made up of one or more cells
• Responds to stimuli

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In order for something to be considered a living organism, it must display _____ of the eight characteristics of living things.

• all
• some
• one
• more than half

Living things are based on a universal genetic

code. What molecule is responsible for that code?

• RNA

• Lipid

• Protein

• DNA

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A stimulus can be external or internal.

• False

• True

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When you step out into the cold, your body shivers in order to keep its temperature at 98.6F.

• All living things use energy
• All living things contain cells
• All living things maintain homeostasis
• All living things grow

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A plant growing towards the light is an example of 

• reproduction.
• responding to a stimuli.
• metabolism.
• homeostasis.

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