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What is the most basic unit of life?

• cell
• tissue
• organ
• organ system

The scientific name for something living is a(an)

• organism
• cell
• tissue
• human

An organism made of one cell is called

• unicellular
• multicellular

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

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

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

A baby song bird hatches from its egg with both parent songbirds watching. Which characteristic of life does this represent?

• All living things reproduce

• All living things maintain homeostasis

• All living things use energy

• All living things grow

Identify all of the following that are living.

• Volcano

• Tree

• Sun

• Fungus

Identify all of the following that are nonliving.

• Rock

• Oxygen

• Bacteria

• Battery

Which of the following characteristics of living things best explains why your legs and arms get longer and stronger as you get older? 

• living things respond to their environment
• living things maintain internal balance
• living things are made of cells
• living things grow and develop

In all of our cells there is DNA. Which characteristic of life does this fact best describe?

• living things respond
• living things maintain internal balance
• living things are based on a universal genetic code
• living things grow and develop