Question

Coral reefs are highly productive and diverse ecosystems because :

A) they are made of limestone that supports many species of zooplankton with high productivity.

B) corals produce limestone skeletons that create habitats for many ocean species.

C) they are composed of polyps that live in and are adapted to warm, shallow tropical waters with high nutrient availability.

D) they have high turnover rates with high polyp production.

Answer

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