The Major Concentrations of Life in the Oceans Are Found

Multiple Choice

The major concentrations of life in the oceans are found in:

A) the aphotic zone due to high light levels.
B) deep, large oceans due to high nutrient concentrations.
C) the oligotrophic zone due to clear and clean water.
D) regions of upwelling and in shallow coastal waters.
E) the anoxic zone.