I think the answer is photosystem
PH = - log [H+]
Transpose and solve for H+
3 = - log [H+]
H + =

= 0.001 M
Through the carbon cycle and ocean acidification
The correct answer that would best complete the given statement above would be the first option. Coral reefs are built by a small organism called a polyp. The polyp creates the structure of the coral reef by building a CUP out of a calcium carbonate. The skeletons of these tiny corals s<span>ecreted by the lower portion of the polyp. Hope this answer helps.</span>