Attributes of Animal Kingdom Classification Animal kingdom  comprise of multicellular eukaryotic animals and is one of the kingdoms among five kingdom scheme of classification (by Whittaker).   What is the Basis of Classification? There is a distinction in form and type of various animals; there are a few important characteristics that are regular to different organisms. These components include,  Body symmetry, Nature of coelom, Arrangement of cells, Notochord, Patterns of circulatory, digestive and reproductive frameworks, Segmentation and Arrangement of cells in germ layers. The above mentioned attributes that are discussed in details as follows are the basis for the characterization of animal kingdom.   Levels of Organization Every one organisms of the Animal kingdom is multicellular still they don't display the same example of cell organization. The examples of cellular organization found in animals are: Cellular Level of Organization  –  In such animals the

Plant Kingdom Kingdom Plantae includes green, brown and red algae, liwerworts, mosses, ferns and seed plants with or without flowers. They have the following characters:- (1) Multicellular organisms with walled and frequently vacuolate eukaryotic cells. (2) They contain photosynthetic pigment in plastids. (3) Principle mode of nutrition is photosynthesis but number of plants has become absorptive. (4) Primarily non-motile, living anchored to a substrate. (5) Structural differentiation leading towards organs of photosynthesis, anchorage and support and in higher forms towards specialized photosynthetic, vascular and covering tissues. (6) Reproduction is primarily asexual or sexual. The reproductive organs are multicellular. (7) A multicellular embryo is formed during development from the zygote. Algae lack embryo stage. Life cycle consists of alternating haploid gametophyte and diploid sporophyte generation. This phenomenon is called alternation of generation.         

Types of Biological Classification There are three main types of classification-artifical, natural and phylogenetic: Artificial System of Classification It is a system of classification which uses one or two morphological character for grouping of organisms.  Some artificial system have used habot and habitat for this purpose. Aristotle (c 350 BC) divided animals into two categories, enaima (with red blood) and anaima (without red blood). Aristotle also classified animals on the basis of their habitat- aquatic ( e.g, fish, whale ), terrestrial ( e.g, reptiles, cattle ) and aerial ( e.g. birds, bat ). Pliny the Elder (23-79 A.D.) used artificial system of classification for both plants and animals dividing them into land, air and water. Pliny distinguished animals into flight band nonflight ones. Flight animals included bats, birds and insects. Natural System of Classification It is a system ofclassification which takes into consideration comparable study of a number of char