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What part of the plant is #3?

• leaf
• root
• flower
• stem

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Some plants have spines to help protect them from predators.

Why did these plants develop this adaptation?

• They needed sun and nutrients.

• They needed water.

• They needed protection.

• They needed to reproduce.

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Madison's life science class was investigating the characteristics of animals. The drawings below show three animals Madison was studying.

Which physical structures do all three of these animals use for support and movement?

• claws and teeth

• scales and tails

• bones and muscles

• lungs and legs

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___ is the structure of a living thing.

• Anatomy

• Biology

• Biome

• Blubber

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Giraffes have long ___ so they can reach a lot of food sources that other animals can't reach.

• necks

• gills

• fur

• beaks

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Juan wanted to become an expert bird watcher. He decided to watch for birds in his backyard. Juan lives in a heavily wooded area that has lots of fallen trees, but not much grass and no bodies of water. Any bird living in Juan's backyard will need to be able to drill for insects in the trees.

Which bird beak is Juan most likely to see on a bird living in his backyard?

• 
• 
• 
• 

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Ducks have webbed feet to help them swim in water.

• physical adaptation

• behavioral adaptation

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Which is an internal structure?

• Hair

• Teeth

• Lungs

• Claws

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The ______ system helps you move, protects your organs, gives support to the body, and makes red blood cells.

• skeletal system

• muscular system

• digestive system

• respiratory system

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The function of kidneys...

• Transport nutrients

• Circulate blood

• Break down food

• Waste removal

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