1.

2.How is oxygen and carbon dioxide transported in human beings?

Answer»

The two main gases exchanged areoxygen and carbon-dioxide.Oxygenis absorbed by the blood capillaries from the lungs alveoli by diffusion whilecarbon-dioxideis absorbed by the lungs alveoli from blood capillaries by diffusion. ...Oxygenistransportedfrom lungs to thebodycells in the form of oxy-hemoglobin.



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