Why multicellular organisms require ventilation ? can i get a answer in depth i need to get distinctions or my assignment

Multicellular organism require ventilation because large organisms have a relatively small surface area to volume ratio and a large diffusion distance. Small organisms breath through their skin. The oxygen diffuses into their skin and the carbon dioxide diffuses out. ... Resulting in us needing a ventilation system to effective transport oxygen to all parts of our body.

The need activity of the nurse is to suction discharges from the trachea. current treatment approaches in the pressing consideration facilities or crisis offices are corticosteroids and nebulized epinephrine; steroids have demonstrated advantageous in extreme, direct, and even gentle croup. in the clear instances of croup, anti-microbials are not endorsed, as the etiology is viral