Afood chain in an ecosystem flows from green algae, to freshwater snails, to small fish, and finally to large fish. which organism is the primary consumer? large fish small fish green algae freshwater snails

freshwater snails

Explanation:

The food chains are basically divided into three categories, producers, primary consumers, and secondary consumers. The primary consumers in the food chain are the ones that feed upon the producers, thus they are herbivores. In this case, we the green algae as a producer and base of the ecosystem, and the freshwater snail as a primary consumer as it is feeding upon the green algae. Further, the primary consumer is food for the secondary consumers, which are the organisms that are preying on other organisms.

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