Unit 2: What is Life?

Which is NOT a characteristic that all living organisms share? 

• Ability to reproduce 
• Ability to grow 
• Ability to respond to their environment 
• Ability to dominate an ecosystem 

All living things have an internal structure of ____________, which are the smallest unit of life. 

• Cells
• ATP
• Glucose
• Sugar

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Light, smell, sound, and temperature are all examples of what? 

• Cells
• Stimuli
• Fungi
• Reactions

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You accidentally touch a hot burner and quickly pull your hand away. The burner is 

• homeostasis
• a reaction
• ATP
• a stimulus

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

• All living things get and use energy

• All living things have an internal structure

• All living things respond to their environment

• All living things grow

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A baby song bird hatches from its egg with both parent songbirds watching

• All living things reproduce
• All living things respond to their environment 
• All living things have a metabolism 
• All living things have an internal structure 

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A caterpillar hibernates in a cocoon and emerges as a butterfly.

• All living things have adaptations
• All living things have a metabolism
• All living things respond to their environment
• All living things grow and develop

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Over three years, Tim's height has increased from 5'4" to 5'11".

• All living things have an internal structure
• All living things give off secretions
• All living things have a metabolism 
• All living things grow

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YOU are a multi-celled organism but an amoeba is a single celled organism.

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

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Something that has never shown the characteristics of life and never will. 

• dormant
• nonliving 
• living 
• dead