Question : Tiny marine animals which constitute limestone skeletons are called
Option 1: Clamitomonous
Option 2: Foraminifera
Option 3: Coral Reefs
Option 4: Diatoms
Correct Answer: Coral Reefs
Solution : The correct answer is Coral Reefs.
Coral Reefs are formed by the symbiotic relationship between Coral Polyps and a microscopic algae called zooxanthellae. They are tiny marine organisms which live in calcareous skeletons. Corals are calcareous rocks which provide shelter, while zooxanthellae are microscopic chlorophyll containing algae which has ability to synthesize food. They grow in shallow clear water which have rich supply of nurients and they have low temperature tolerance.
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