Blood must travel through capillaries at a slow rate to assist with diffusion of fluid into the interstitial space.
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Membranes control whats good or whats bad to get inside the cell, basically it allows good things to pass into the cell and bad things to stay out
The answer is F, false. Natural selection is still involved, with stronger and more procreative individuals spreading their genes. An example of when natural selection is not involved would be when human breeders look for specific traits and breed accordingly.
The air begins to rise into the atmosphere. When air rises, it cools down and condenses into precipitation and clouds. This is why an approaching low pressure system means an increased chance for clouds, rain, or snow. It is called "low pressure" because as air rises, the air pressure is lower at the surface.