Many unicellular protists move by changing their shape. Cytoplasm streams into the blank space 1
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, and the rest of the cell follows. This type of movement is called blank space 2
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movement.

Many protists use structures to move. Some protists have blank space 3
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, which move somewhat like oars on a boat. Other protists have blank space 4
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, which spin or produce a wavelike motion.

Some protists are blank space 5
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. They depend on air or water currents and other organisms to carry them around. This type of movement is called blank space 6
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movement.