Abstract
Correctly defined words are essential for understanding evolution. Confusion reigns because microevolution and macroevolution are defined at the level of species rather than at the level of DNA. Causative agency is frequently ignored or ascribed to naturalistic mechanisms without supporting evidence. Biological relationships do not reveal causal agency in DNA alterations. Natural selection refers to the elimination of inferior individuals and not to the production of abundant protein variations. Methodological naturalism is only an approximation of how the universe usually runs. No scientific theory of evolution exists. Intelligent design and natural science are separate entities. Biology is composed of scientific systems and nonscientific origins.