Please help: Coral reef matching game

Question

A) algal ridge

B) terrace

C) reef flat

D) submarine terrace

E) reef slope

rich layers of coral high diversity

stout fire corals

black tip shark

gorgonian corals-sea fans

spurs and grooves

Answer 1

rich layers of coral, high diversity = reef slope (E) - the diversity in light and low wave action allows for many species to take advantage of all the available niches

stout fire corals = algal ridge (A) - because the ridge is exposed to very high wave action, the corals here have to be stout and keep their projections facing into the waves to avoid breakage

black-tip reef shark = reef flat (C) - this is a shallow water species

gorgonians = reef slope (E) - these are too fragile to be found in the higher areas with their degree of wave action (Although, if you can use each letter only once, then I suppose these could be in what you call the "submarine terrace" (D) because they are usually found just below the spur & groove zone.)

spurs & grooves = terrace (if that's what they're using for the buttress zone) (B) - this is where the corals grow outward, but the grooves allow for dampening of wave action