Plants are the primary producers in ecosystems on land. The primary producers, who carry out photosynthesis, in aquatic (water) ecosystems are fish

algae

phytoplankton

Both algae and phytoplankton

Both algae and phytoplankton

Explanation:

In the aquatic ecosystems, both algae and phytoplankton are producers and on land, plants are the primary producers.

The primary producers provides food for the whole ecosystem.

During photosynthesis these producers are able to take up inorganic compounds and synthesize organic molecules. They use carbon dioxide and water in the presence of sunlight to produce glucose and oxygen gasThe glucose is the food on which the ecosystem depends on Algae and phytoplankton produces food this way too.

What do you mean about innate behavior i don’t get it

A. mitochondrion b. nucleus