Weegy: The answer is coral reefs.
User: Which of the following statements is NOT true about the open ocean?
a)The open ocean has low levels of nutrients.
b)Organisms in the deep ocean are exposed to frigid temperatures and total darkness.
c)The open ocean begins at the low-tide mark and extends to the end of the continental shelf.
d)Most of the photosynthetic activity on Earth occurs in the open ocean within the photic zone. Weegy: ... (More)