Definition that contains food chain
- cyclops minute free-swimming freshwater copepod having a large median eye and pear-shaped body and long antennae used in swimming; important in some food chains and as intermediate hosts of parasitic worms that affect man e.g. Guinea worms
- food cycle (ecology) a community of organisms where there are several interrelated food chains
- water flea minute free-swimming freshwater copepod having a large median eye and pear-shaped body and long antennae used in swimming; important in some food chains and as intermediate hosts of parasitic worms that affect man e.g. Guinea worms
- food pyramid (ecology) a hierarchy of food chains with the principal predator at the top; each level preys on the level below
- food web (ecology) a community of organisms where there are several interrelated food chains
- bottom-feeder a scavenger that feeds low on the food chain
- nonbiodegradable pollution pollution that accumulates in the environment and may appear in the food chain