营养层次,摄食层次,营养水平;
Producer The first TROPHIC LEVEL , in a food chain.
生产者:食物链中第一个营养级.
While Ζ S 1S 2 cos(Δα)/ PCV max, preying relationship absents, the former Eqs. shows two species in the same trophic level and the latter in more than one trophic level.
当ΖS1S2cos(Δα)/PCVmax时,不存在捕食关系,前式为同一营养级,后式为相隔一个至几个营养级。
These microscopic organisms are assigned a trophic level ( TL ) of 1.
这些微生物的营养级为1.
简答网 · 高考英语
简答网 · 中考英语
简答网 · 初中英语作文