The branching pattern of evolution resulting from adaptive radiation is known as cladogenesis the clumping together of red cells in blood as a result of antibodies attaching to antigens on the surface of the cells.

This occurs when blood of incompatible types is mixed together outside of the body, as for example during blood typing. Important disease-fighting white blood cells are destroyed, resulting in a weakened immune system.

This is because of the selective advantage it provides.

Short arms, legs, and other appendages have relatively less skin surface area that can radiate heat into the surrounding environment.

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When different types of blood come into contact within the body as a result of a mismatched transfusion, the alien red cells usually burst instead of agglutinate. Death usually comes as a result of cancer or other diseases that are normally fought off by healthy immune systems.

HIV is spread from person to person via bodily fluids such as blood and semen.

Adaptive radiation is the process by which one species evolves into two or more species.

This occurs as a result of different populations becoming reproductively isolated from each other, usually by adapting to different environments.

blood typing system in which there are 4 distinct types: A, B, AB, and O.

An individual inherits an ABO type from his or her parents and does not change it throughout life.

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