Question

What is internal Respiration?

It is diffusion of gases from lungs into the blood stream.

OR

It is diffusion of gases from lungs into the blood stream. and diffusion of gases from blood streams and lungs.

Answer 1

: the exchange of gases (as oxygen and carbon dioxide) between the cells of the body and the blood by way of the fluid bathing the cells

internal respiration. The metabolic processes whereby certain organisms obtain energy from organicmoelcules; processes that take place in the cells and tissues during which energy is released and carbon dioxide is produced and absorbed by the blood to be transported to the lungs.Respiration that occurs within cells of an organism.