Zoology: An Introduction; Origin of Life; Organic Evolution and its Evidence; Cell: Unit of Life; Human Evolution; Classification of Animals Kingdom; Phylum-Protozoa; Phylum-Porifera; Phylum-Cnidaria; Phylum-Nematoda; Phylum-Annelida; Phylum-Arthropoda; Phylum-Mollusca; Phylum-Echinodermata; Phylum-Chordata; Animal Tissue; Muscles and Skeleton; Nutition and Digestion; Vitamins and Minerals; Respiratory System; Circulatory System; Human Blood Group.