Plankton

Question 1

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	A few dozen cells
	Hundreds of cells
	Thousands of cells
	Millions of cells

Question 2

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	it makes the water more acidic.
	it makes the water saltier.
	it kills large predators like sharks.

Question 3

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	the ocean
	prokaryotes
	zooplankton
	algae

Question 4

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	To attract a mate
	To see in the dark
	Just for fun
	To scare away predators

Question 5

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	plants
	microscopic
	aquatic (water-living)
	drifting or wandering

Question 6

Zooplankton are tiny animals.

Your answer	Choice	Feedback	Correct answer
	True
	False

Question 7

All plankton are microscopic (too small to see without a microscope).

Your answer	Choice	Feedback	Correct answer
	True
	False

Question 8

Your answer	Choice	Feedback	Correct answer
	phytoplankton
	zooplankton
	eukaryotes
	prokaryotes