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. Definition. noun, plural: habitats. (1) Place where an organism or a biological population normally lives or occurs.(2) The location or environment where an organism (or a thing) is most likely to be found, e.g. the body part of the host of a parasite as in the scalp of the host is the habitat of a head louse.3) The home to a particular organism where the species will attempt to be as adaptive as possible to that particular environment. (4) The place being occupied by an organism, population, or community. Supplement. Word origin: from Latin, it dwells, third person sing. present of habitÄre, to dwell.