A cotyledon (/kÉtÉ¨ËliËdÉn/ ; seed leaf from Greek: ÎºÎ¿ÏÏÎ»Î·Î´ÏÎ½ kotylÄdÅn, gen.: ÎºÎ¿ÏÏÎ»Î·Î´ÏÎ½Î¿Ï kotylÄdonos, from ÎºÎ¿ÏÏÎ»Î· kotÃ½lÄ cup, bowl) is a significant part of the embryo within the seed of a plant.he cotyledons contain (or in the case of gymnosperms and monocotyledons, have access to) the stored food reserves of the seed. As these reserves are used up, the cotyledons may turn green and begin photosynthesis, or may wither as the first true leaves take over food production for the seedling.
A habitat (which is Latin for it inhabits) is an ecological or environmental area that is inhabited by a particular animal or plant species.
Habitat, by definition, is the environmental or the ecological area being inhabited by any organism. In other words, habitat is the natural environment in which an animal, a plant, or any other organism occupies. Habitat surrounds a population of one species, and it determines the distribution of a particular species.n ecosystem contains many habitats, and that explains the relationship between these two components in brief. In other words, habitat is the home inside the village of ecosystem. These two entities have different characteristics and those are particularly important to understand.