Coral and Algae Have a Reciprocal Relationship in Which the Algae

Multiple Choice

Coral and algae have a reciprocal relationship in which the algae perform photosynthesis,providing the coral with nutrition and helping with the calcification process.In return,the coral provide the algae with nutrients.This is an example of which type of relationship?

A) Parasitic.
B) Opportunistic.
C) Symbiotic.
D) Predator/prey.