Unit 1: Living Systems Lesson 1-Life in the Earth System

______________________ is the scientific term for a living thing.

• organism
• cell
• photosynthesis
• DNA

The ability of an organism to create offspring is ___________________________________.  

• reproduction
• evolution
• development
• growth

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Rocks are not living because

• they never move
• they aren't needed for humans
• they are not made of cells
• they don't break down

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An amoeba is a unicellular organism. Which characteristic of life is this?

• All living things use energy
• All living things contain cells
• All living things respond to their environment
• All living things grow

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When a baby kitten becomes an adult cat, this is an example of...

• energy metabolism
• growth and development
• response to stimuli
• having cells

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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

A camel has eyelashes that work to keep the dust and sand out of its eyes.

• All living things respond to their environment

• All living things grow

• All living things have cells

• All living things use energy

Green plants produce their own food through the process of photosynthesis.

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

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Living things are made up of units called

• DNA

• Cells

• Homeostasis

• Seeds

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A conceptual model is?

• a diagram or flowchart

• an equation

• a computer model

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