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Question
Corals are
Options
Poriferans attached to some solid support
Cnidarians, that are solitary living
Poriferans present at the sea bed
Cnidarians that live in colonies
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Solution
Cnidarians that live in colonies
Explanation -
Corals are cnidarians (coelenterates) that live in colonies. Examples of some corals are Corallium (red coral), Meandrina (brain coral), Astraea (star coral), etc.
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