Question

The basis of many estuarine food chains is _____________.

Answer 1

The basis of many estuarine food chains is photosynthetic organisms, such as plants or phytoplankton, which are called producers.

Step-by-step explanation:

The basis of many estuarine food chains is photosynthetic organisms, such as plants or phytoplankton, which are called producers. These organisms capture energy from the sun through photosynthesis and form the foundation of the food chain. The organisms that consume the producers, such as herbivores called primary consumers, and the subsequent consumers in the chain, including carnivores and higher-level consumers, depend on the producers for their energy and nutrients.