Therefore, dependence on diffusion as a means of obtaining oxygen and removing carbon dioxide remains feasible only for small organisms or those with highly-flattened bodies, such as many flatworms (Platyhelminthes)
Prado-Galbarro FJ, Auchincloss AH, Prez-Ferrer C, Sanchez-Franco S, Barrientos-Gutierrez T
The severity of CO poisoning depends on several factors, including the concentration of CO in the air, the duration of exposure, and the individual's health status
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