G2 TX Science CH7 Lesson Review: Lesson 2

Which animal is pollinating a plant?

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Coconuts are the seeds of palm trees. They use water to travel to different places. Which statement is true about the coconut?

• A) A coconut can float.

• B) A coconut can stick to fur.

• C) A coconut has structures that work like wings.

The photo shows seeds of a maple tree. The seeds are attached to structures that act like wings. They depend on wind to allow dispersal by catching the wind.

• These seeds are light and easily blow away.

• They serve as a nutrient source.

• They increase the weight of the seeds.

• They prevent the seeds from being dispersed.

Which two plants use the wind to spread pollen and disperse seeds?

• flowers

• pine trees

• grasses

• water lilies

Look at the photo. The burdock plant is depending on the cow for seed dispersal by attaching its burrs to the cow's fur.

• The cow carries pollen stuck to it's fur

• It obtains nutrients from the cow.

• It uses the cow for mechanical support.

• It depends on the cow for pollination.

__________________ is how pollen is transferred from one plant to another.

• disperse

• pollination

• pollen

______ is a powder that helps seeds form.

• pollen

• pollination

• disperse

Animals, wind, or water can_______ pollen, or move it from one place to another.

• pollen

• pollination

• disperse

Some seeds depend on the wind. Their fruits have structures that work like wings. These _____ are light and easily blow away.

• seeds
• pollen

• pollination

Some seeds depend on water. The _____ may grow close to a lake, river, or ocean.

• pollen

• seed
• plant