Question

put the following organisms in an aquatic food chain in the order in which energy flows through them, explaining the reason for their placement. small fish, mammal, phytoplankton, zooplankton

Explanation:

Phytoplankton are primary producers that use photosynthesis to convert sunlight into energy. Zooplankton feed on phytoplankton. Small fish eat zooplankton. Some mammals in aquatic ecosystems may prey on small fish. So the energy - flow order is based on the food - eating relationships.

Answer:

phytoplankton, zooplankton, small fish, mammal