Answer: lower atmospheric pressure
Explanation:
During the inspiration process the diaphragm, and external intercostal muscles. The contraction of the diaphragm causes the increase in the size of the thoracic cavity this causes the contraction of the external intercostal muscles. As a result of this the ribs and the sternum get elevated.
This causes the lungs to expand, and increasing the volume of the air passage. In this response the air pressure inside the lungs reduces below the air outside the body. Thus this facilitates the movement of the gases from a region of high pressure to low pressure, this way the air rushes into the lungs.
Purple Flower
this is because the phenotype is the physical description (:
Body, organ systems, organs, tissues, cells. I think those are all the ones you're looking for from most to least complex.
Well As the ambulance gets closer, the sound waves are compressed relative to the person; so the frequency increases.
Non-infectious. These cannot be "caught" from another person with the illness via any contact like germs.