Oceans

What is the funnel-shaped opening beneath an octopus's head that secretes a black fluid when threatened?

More Questions from Oceans
An estuary connects the ocean to a what?
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The definition of "the periodic rising and falling of the earth's oceans and atmosphere" best fits which science term?
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Who built the ship RMS Titanic?
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What type of algae live symbiotically with coral reefs in shallow waters?
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At what depth may you need to go to see a frilled shark in the ocean?
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What is oceanic crust?
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What is a tropical cyclone formed in the Pacific Ocean called?
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The Pacific Ocean’s name has an original meaning of what?
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