1·Organisms dependent on an organic carbon source are termed heterotrophs.
依赖于有机碳源称为异养结性物。
2·They are an important part of the diet of most heterotrophs (including humans).
他们是最异养生物(包括人类)的饮食的重要组成部分。
3·Producers are often referred to as being in the first trophic level and are called autotrophs by the heterotrophs.
生产者通常被称为第一营养级，被异养称为自养。