Question

Define Polyps. How are coral islands formed?

Answer 1

Explanation:

polyps are animals with a very hard shell.

when they die and accumulate at one place they gradually form an island called coral islands. eg. Lakshadweep islands

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Answer 2

Answer: polyps are a solitary or colonial sedentary form of a coelenterate such as a sea anemone, typically having a columnar body with the mouth uppermost surrounded by a ring of tentacles. In some species, polyps are a phase in the life cycle which alternates with a medusoid phase.Coral islands are low islands formed in warm waters by tiny sea animals called corals. Corals build up hard external skeletons of calcium carbonate. This material, also known as limestone, is similar to the shells of sea creatures like clams and mussels. Colonies of corals may form huge reefs