Biology II Practice Test
[Word version]
1. _______________________________________ is sometimes called "survival of the fittest". 2. ___________________________________ is the raw material for natural selection. 3. _______________________________ individuals survive and reproduce. 4. Natural selection causes _________________________ change. 5. Species change to fit their environment (called _______________________________). 6. Organisms that are suited to their environment reproduce ________ those less suited to that environment. 7. Organisms often produce _________________________ offspring than can survive. 8. The evolution of the long necks of giraffes is an example of _________________________. 9. Natural selection could not occur without _________________________ in species. 10. Natural selection causes changes in the _________________________ in a species population. 11. ________________ occurs when two opposing forces affect the frequency of an allele in a population. 12._______ is when species adapt to different ecological niches and ultimately evolves into different species. 13. _________________________ is the principle mechanism driving adaptive radiation. 14. Mechanisms that drive adaptive radiation include _______________________. 15. Punctuated equilibrium is a theory that says that evolution occurs at ________________ rate over time. 16. Punctuated equlibrium was first proposed in 1972 by _________________________. 17. _________________________ says that things change in big steps instead of gradually. 18. Some say that mutations might be one agent for sudden change in _____________________________. 19. What caused the trees in England to become darker? _______________________________________ 20. The example of industrial melanism in the notes deals with ____________________________________ 21. Who was naturally selected for survival on light colored tree bark in forests before the industrial revolution in England? _____ 22. Who conducted the experiments with peppered moths? _____________________________________ 23. If species in that environment adapt to changes caused by industry, they ___________________survive. |