Identify the producers in a terrestrial ecosystem compared to those in an aquatic ecosystem

Producers are the organisms that provides the energy for all the other organisms in an ecosystem. In a terrestrial (land) ecosystem, the producers are the trees, grasses, flowers etc. While in an aquatic (water) ecosystem, the producers would be algae and other underwater plants. Both terrestrial and aquatic producers have the same basic details on how it works. Both uses sunlight and carbon dioxide to produce oxygen and sugars.