Punctuated equilibrium to gradualism

1. Compare and contrast punctuated equilibrium to gradualism
2. Explain what a ring species is and why it’s relevant to macroevolution
3. Explain why defining a species is so tricky
4. Describe the 3 different ways in which scientists define species
5. Explain how and why maggot flies are likely undergoing a speciation event (and how)
6. Explain the significance of trilobites and Tiktaalik to evolutionary theory
7. Identify the contributions of Darwin, Gould & Eldredge