Q.
Reindeer Moss, a very important producer in arctic zone and which constitute the starting point. of food chain in this region and also the staple food of reindeers belongs to
: Lichens are a distinct group of plants having a composite structure consisting of two dissimilar organisms i.e., a fungus and an alga, associated in a symbiotic association. They are used as food and fodder, e.g., Reindeer moss (Cladoma rangifernia) of the arctic region is eaten by reindeer and cattle. Reindeer belongs to producers category in-the food chain. Iceland moss have been used as food by man in Iceland.