Environmental Science 14th Edition by Tyler Miller ,Scott Spoolman

تمرين 22

What are the two key concepts for Section 4-2 What is a fossil and why are fossils important for understanding the history of life What is biological evolution State the theory of evolution by natural selection. What is a mutation and what role do mutations play in evolution by natural selection What is an adaptation (adaptive trait) How did humans become such a powerful species What are two limits to evolution by natural selection What are three myths about evolution through natural selection