<span>The process whereby neutrophils and other white blood cells are attracted to an inflammatory site is called as <u>chemotaxis</u>. It is a process by which inflammatory cells migrated or attracted towards other cells in the blood. It's like a phenomena of negative cells attracted to positive cells. Technically speaking, it's a movement of cells in response to chemical cells. It's an important response common in cellular biology. It's also a process by which cells translate chemical information.</span>
The second one changes in the amount of atmospheric gases because it think it might effect everyone including plants and animals because will all breath the same air rather than a mountain building it might affect the animals that like there.