This book covers key areas of applied science & technology and other related fields (theme: biology). The contributions by the authors include morphology, phenology, polynomial, Gillnet, carangid, Isophya, mtDNA, ND1 gene, PCR primers, 16S RNA gene, Freeze-drying, Moringa oleifera, bioactive proteins, lectins, trypsin inhibitor, proteases, Opuntia sp., forage cactus, Caatinga, rhizosphere, enzymes, cellulases, L-asparaginases, Poincianella pyramidalis, Rubber seed oil, fatty acid profile, ICP-MS-inductively coupled plasma mass spectrometry etc. This book contains various materials suitable for students, researchers and academicians in the field of applied science & technology (theme: biology).