How is it that the open ocean produces the highest net primary productivity of Earth's ecosystems, yet net primary productivity per square metre is relatively low?
A)Oceans contain greater concentrations of nutrients compared to other ecosystems.
B)Oceans receive a lesser amount of solar energy per unit area.
C)Oceans have the largest area of all the ecosystems on Earth.
D)Ocean ecosystems have less species diversity.
E)Oceanic producers are generally much smaller than oceanic consumers.

Question

Quizplus · Accepted Answer

The open ocean covers a vast area of the Earth's surface, so even though its net primary productivity per square meter is low, the total productivity is high due to the sheer size of the ocean.

How Is It That the Open Ocean Produces the Highest