What device measures the volume and flow of air during inspiration and expiration

The organelle pictured is found in cells of and is theorized to have once been an independent organism.

Up until 1938, paleontologists accepted the idea that coelacanths (an ancient fish) went extinct at the time that they last appear in the fossil record, about 80 million years ago. but in 1938, a live coelacanth was discovered off the coast of south africa that was compared to the fossil record and found to be the same species what goal of science does this discovery represent

Which type of stimulus do mechanoreceptors detect? sound pain heat light