Question

the illustration below shows an ocean off the coast of a continent. which of the labeled areas will have the highest concentration of living organisms? 1 2 3 4

Explanation:

Area 1 is the continental shelf. It is relatively shallow, allowing sunlight to penetrate, which supports photosynthesis by phytoplankton. This forms the base of the marine food web. Areas 2 (continental slope), 3 (abyssal plain), and 4 (open ocean beyond the shelf) have less sunlight, fewer nutrients (except in some upwelling cases not indicated here), and harsher conditions for a high concentration of organisms compared to the productive continental shelf (area 1).

Answer:

1