Physiology of ruminant and non-ruminant of economic importance. Circulatory system. Digestion and nutrition. Reproductive system. Muscular system. Lymphatic and immune system. Human physiology: Circulatory system. Respiratory system. Digestion and Nutrition. Nervous and endocrine systems. Sensory structures. Excretory and reproductive system. Muscular system. Lymphatic and immune system. Overview of economically important crops. Plant anatomy and structures. Water and plant mineral uptake. Assimilation of nutrients. Vegetative and reproductive growth. Plant growth analysis. Yield determination. Growth kinetics. Seed physiology.