No lungs, no gills: how do insects breathe?
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They may make your skin crawl and you might wish to think of them as a lower life form, but insects have a remarkably elegant and simple way of delivering oxygen to their body and removing the carbon dioxide waste. Insects have a tracheal system rather than the complex respiratory (lungs and stuff) and circulatory…
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Course: Science and Elementary Technology, Topic: UNIT 9: Animals
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