What is at the bottom of the food chain?

Answer by  raun08 (1839)

Technically it's plants, because many animals survive on them but they don't generally predidate in return. The phrase is used to describe the perceived hierarchy of predator and prey animals in an ecosystem. Those that are eaten and those that do the eating, respectively. It tends to be over simplified and ignores insects who can be both prey and predator.

Answer by  sunflower249 (338)

The bottom of the food chain is comprised of things which are good for other things, but which don't eat anything themselves. The only living things that are really at the bottom of the food chain are plants, but the expression is commonly used for herbivores as well - animals that eat only plants.

Answer by  Mary15 (347)

Any plant-like organism is at the bottom of the food chain. Organisms that can make their own food through photosynthesis fulfill themselves so that bigger organisms can eat them etc.