sentence: Marine snow is the basis of much life on the ocean floor.
sentences_before: In terrestrial ecosystems, leaf litter and other organic matter gets mixed with soil. The result is called humus. Detritus of aquatic ecosystems is organic material suspended in water, which is sometimes referred to as marine snow.
sentences_after: It is the food of animals which operate as 'filter-feeders'.
concept_name: marine snow
headings: Detritus
categories: Biology