Characteristics of Life and Macromolecules

What is the most basic unit of life?

• cell
• tissue
• organ
• organ system

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Your body shivers when you are cold. This is because of the concept of...

• homeostasis
• heredity
• energy metabolism
• cellular organization

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Your body shivers when you are cold. This is because of the concept of...

• homeostasis
• heredity
• energy metabolism
• cellular organization

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If an organism is made entirely of one cell it is called...

• Multicellular

• Prokaryotic

• Unicellular

• Eukaryotic

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

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

Fungi, Plants, and Animals

• Unicellular organisms 
• Multicellular organisms

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Multicellular Organisms

• Made of 1 cell
• Made of more than 1 cell

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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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Which statement describes ALL living things?

• They are composed of one or more cells.

• They must reproduce sexually.

• They have organ systems to carry out the processes of life.

• They are capable of making their own food.

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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

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