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# ¿ Nov 1, 2019 20:29 |
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# ¿ Mar 28, 2024 09:06 |
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Squalid posted:insects and a lot of other terrestrial invertebrates don't breath through their mouths. Instead insects breath through a series of little holes on the sides of their bodies called spiracles. This changes respiration in some interesting ways -- for example unlike tetrapods who have to actively pump air into and out of their lungs they can instead rely on passive gas exchange meaning they don't have to use any muscles at all during respiration. Take a look at a mouse or even yourself in a mirror sometime -- your chest is almost constantly moving. By contrast you could watch a spider waiting for prey for hours and it might not even twitch. Usually these animals don't have to actively breath even when exerting themselves. Instead they rely on the flexing of their limbs as they move to pump air in and out of their bodies. do you have any information on clown respiratory systems?
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# ¿ Dec 28, 2019 04:29 |