Plant Evolution and Adaptations

Some trees shed their leaves in time for winter. Why is this adaptation useful?

• The trees save energy during the darker, colder months.
• The trees take in more sunlight through their branches.
• The trees attract animals to spread their seeds.
• The trees blend into their environment and hide.

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The roots absorb what for the plant? 

• Water and Nutrients
• Soil and Sun
• Warmth and Water
• Tap and Fibrous

Which is NOT a way seeds scatter?

• water
• wind
• animals eat fruit and seeds are deposited
• lightning

Helps the plant to anchor to the soil and get water and nutrients.

• Leaves

• Stems

• Roots

• Odd shapes

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Helps the plant to transport water, nutrients, and food from their roots to their leaves.

• Leaves

• Roots

• Stems

• Small leaves

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Cactus have a thick waxy coating on their stem that keeps them from drying out- is this a behavioral adaptation or physical adaptation?

• Behavioral adaptation
• Physical adaptation 

The Tickle Me Plant folds its leaves in when touched - is this a behavioral adaptation or physical adaptation?

• Behavioral adaptation
• Physical adaptation

Some grasses grow in hot dry areas. Why might they grow very deep roots?

• to protect the plant from sun damage

• to take in as much light as possible

• to spread seeds to new places

• to reach water that is underground

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What is one reason that some plants have a strong scent?

• to shed extra water off the plant

• to take in nutrients from the soil

• to attract animals to spread its pollen

• to conserve water during dry periods

What is one possible reason for seeds to have hooks or barbs?

• to stay warm during the winter

• to protect themselves from sunlight

• to get attached to passing animals and get carried away

• to stick to animals and steal nutrients from them

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