Plankton

Question 1

Your answer	Choice	Feedback	Correct answer
	Hundreds of cells
	A few dozen cells
	Millions of cells
	Thousands of cells

Question 2

Your answer	Choice	Feedback	Correct answer
	eukaryotes
	phytoplankton
	zooplankton
	prokaryotes

Question 3

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	algae
	prokaryotes
	zooplankton
	the ocean

Question 4

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

Question 5

Zooplankton are tiny animals.

Your answer	Choice	Feedback	Correct answer
	True
	False

Question 6

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

Your answer	Choice	Feedback	Correct answer
	True
	False

Question 7

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

Question 8

Your answer	Choice	Feedback	Correct answer
	drifting or wandering
	plants
	aquatic (water-living)
	microscopic