Quick reactions/reflexes which do not need to be process by the brain in order to determine a response.
Water on each side of a divide flows in the opposite direction from the top to the bottom on each side of the divide. A divide is understood to be a ridge, mountainous area, a shallow basin or a manmade shelter of sorts. Water flow is affected by natural topographical features as well as manmade objects. For example, rainwater will flow down each side of a hill towards a stream or a lake. The shape of the top of the hill will determine in which direction the water will flow. Rainwater will also soak into the ground and flow downwards towards the water table on either side of the hill.
The pathway will be;
The body cells becomes infected with a virus= then new viral proteins appear = class I MHC molecule-antigen complex displayed on cell surface.
Cytotoxic T cell is a T lymphocyte that kills cancer cells, cells that are infected or cells that are damaged in other ways. They are activated on the surface of antigen-presenting cells, which mature during the innate immune responses triggered by an infection.
The mitochondria (specifically the inner membrane/inner membrane space) is the place where ATP is generated from glucose and oxygen via oxidative phosphorylation. The initial stages where glucose is converted to pyruvate occurs in the cytoplasm.