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| 1. |
Define: a) digestion. b)respiration. c)excretion |
| Answer» Digestion is the process of breaking down complex food into simpler nutrients................... Excretion is the process of excreting the undigested or waste food from the body. ........... Respiration is\xa0a process in living organisms involving the production of energy, typically with the intake of oxygen and the release of carbon dioxide from the oxidation of complex organic substances........... | |