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

Question

Quizplus · Accepted Answer

Regions of upwelling and shallow coastal waters are areas with high nutrient concentrations that support high levels of primary productivity and thus, the major concentrations of life in the oceans. The other choices are not accurate as high light levels in the aphotic zone do not support life, the oligotrophic zone has low nutrient concentrations, and the anoxic zone lacks oxygen for most marine life.

The Major Concentrations of Life in the Oceans Are Found