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Heterotrophic nutrition heterotrophic nutrition: Nutrition is the process of acquiring energy and material for cell metabolism. Heterotrophic organism is organism […]

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Phylum Arthropoda Phylum Arthropoda                 This is the largest of kingdom animalia. About ¾ of all known animals are arthropods […]

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The small intestine is described as the seat of absorption, This is because most of the end –product of digestion […]