Oceans

What type of algae live symbiotically with coral reefs in shallow waters?

More Questions from Oceans
What covers the skin of a cuttlefish and allows it to change its color to blend in with its surroundings?
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A large number of islands referred to collectively is a what?
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What percent of the ocean is salt?
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Light no longer reaches the ocean beginning at what oceanic zone?
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Coral, the largest component of reefs, is most like what type of organism?
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The Strait of Gibraltar connects the Atlantic Ocean to what sea?
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Which underwater machine helps humans travel around beneath the surface of the ocean?
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The Titanic was how many feet from keel to bridge?
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