Question

why photons are know as important Link for aquatic food chain

Answer 1

Protozoa feed on algae and in turn are eaten up by larger aquatic organisms .protozoans are important as an increase in reproduction 

Answer 2

A whirlwind spiral up an aquatic food chain goes like this: phytoplankton feed the zooplankton that feed the small fish and crustaceans that feed the larger fish that feed the even bigger fish that feed us. Taking it a little more slowly and stopping at each trophic level (feeding level), we start with the primary producers. Microscopic phytoplankton floating in the upper layers of the ocean use the sun’s energy to photosynthesize carbohydrates. These carbohydrates can be eaten for energy, and these plants — mostly diatoms and algae — are the foundation of the majority of the ocean’s biological community. In areas of the ocean where there is not light, some producers can even create energy by using the process of chemosynthesis instead of photosynthesis.