Anatomy deals with the study of gross internal details of plant organs like root, stem and leaf etc. the Dicot (primary), Monocot roots and stems in the transverse section show three main zones.
The destruction of forests, pollution, climatic changes and extensive hunting has resulted in the extinction of some species of plants and animals, and many more are approaching towards extinction.
Innumerable kinds of plants and animals are found on earth which is different from each other in shape, size and structure. All these are basically made up of carbon, nitrogen, oxygen and hydrogen.