The organisms vary in diversity on the basis of the environment and community in which they live. The climate and community are responsible for the diversity in organisms. For example, in desert the organisms experience harsh and dry climates due to lack of rainfall. This results in scanty growth of plants and few animal species located and found in the desert region. Whereas, in tropical rainforests the availability of rain helps in development of trees with 80 feet height and dense canopy.
By using universal terms and anatomical position when identifying human body parts, there is very little room for error or confusion as to which part you are referring.
