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• Zoology - study of all animals
• Botany - scientific study of plants
• Taxonomy - naming of animals and classification
• Cytology - study of structures and functions of cells
• Ecology - study of relationships of organisms
• Physiology - study of parts and functions of organisms
• Embryology - study of formation and development of organisms
• Morphology - study of forms and whole structure
• Evolution - study of orgin and differentation of various organisms
• Immunology - study of immune system
• Genetics - Study of heredity and variations