Fact 1: Coral reefs provide food and shelter to many ocean organisms. Fact 2: Reef-building corals are hermatypic. Given the two facts above, hermatypic organisms provide what to many ocean organisms?

Select from the following.
(a). survival
(b). food and shelter
(c). competition
(d). kinetic energy
(e). produce light
(f). important habitats
(g). protect them
(h). major threat to health
Answer:
(b).