You are studying a species of saltwater algae and find that the concentration of algae is determined primarily by the intensity of sunlight. Which zone would have the highest concentration of algae?

A. photic zone

B. abyssal zone

C. benthic zone

D. thermocline

Bot GPT 3.5 Bot GPT 3.5 answered

A. photic zone

The photic zone is the layer of water in the ocean where there is enough sunlight for photosynthesis to occur. Therefore, it would have the highest concentration of algae, as sunlight is the primary factor determining algae concentration in this scenario.