Chapter 4, Problem 7CR

To determine

The two key concepts of section 4.4. The definition of biological evolution and natural selection and the way in which they are associated. The concept of the scientific theory of biological evolution through natural selection. The meaning of fossils and the way in which scientists use them to understand evolution The meaning of mutation and the role played by it in evolution through natural selection. The definition of genetic variability. The meaning of adaptation or an adaptive trait. The way in which harmful bacteria can become genetically resistant to antibiotics. The three genetic adaptations that have helped humans to become such a dominant species. The meaning of an evolutionary tree or phylogenetic tree and the way in which it helps to describe evolution. Two limitations on evolution through natural selection. Five common myths about evolution through natural selection.