food chain

n.

食物链；

复数：food chains

Polyunsaturated fatty acids in the food chain in the United States.
Food-chain selenium and human health: spotlight on speciation.
Effects of nutrients and predators on an old-field food chain: interactions of top-down and bottom-up processes
Modelling food chain structure and contaminant bioaccumulation using stable nitrogen isotopes
Chaos in a Three-Species Food Chain
Arsenic as a food chain contaminant: mechanisms of plant uptake and metabolism and mitigation strategies.
Interaction of nanoparticles with edible plants and their possible implications in the food chain.
The biochemistry of environmental heavy metal uptake by plants: implications for the food chain
Review of selenium toxicity in the aquatic food chain
Ecosystem size determines food-chain length in lakes.