food chain

US /ˈfuːd ˌtʃeɪn/
UK /ˈfuːd ˌtʃeɪn/
"food chain" picture
1.

食物連鎖

a hierarchical series of organisms each dependent on the next as a source of food

:
In the ocean food chain, plankton are at the bottom.
海の食物連鎖では、プランクトンが一番下です。
Humans are at the top of the terrestrial food chain.
人間は陸上の食物連鎖の頂点にいます。