Ecology ( Pt.3 ) Hard by simp_amp More quizzes in Pets, Animals and Nature Lakes that are nutrient poor describe as what? Eutrophic Oligotrophic Autotrophic Heterotrophic They perform a very valuable service by releasing inorganic substances that are taken up by plants once more. Decomposers Herbivores Detritivores Omnivores These are animals that feed both plants and animals. Detritivores Omnivores Herbivores Carnivores Doing great! Continue in HICHAPP