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.
Habitats. A habitat, or biome, is the type of environment in which plant and animals live. Habitat is dictated by what kinds of plants grow there, the climate and the geography. Rainforest, coral reefs and the tundra are all habitats where particular kinds of plants and animals might be found. Terrestrial habitats include forests, grasslands, deserts and rainforests.