23) Tiny animals, called coral polyps, that secrete limestone create a. Barrier islands b. Coral reefs c. Swamps d. Salt marshes​

b)coral reefs

Explanation: Coral reefs are made up of corals called polyps and algae.

answer; ///i believe the answer is (antioxidant);

where in your body is there an enzyme that does function at a high or low ph? what is the name of that enzyme and its function?