21. T/F The limitations of the morphological species concept are that there are possibly "trivial" differences...
21. T/F The limitations of the morphological species concept are that there are possibly "trivial" differences between 2 species, which leads to too many species. 22. Explain Lenski's 3 steps of evolving new function in the bacterium E. coli. 23. Which of the following is not an example of allopatric speciation? a. Darwin's Finches b. Grand Canyon squirrel c. Pacific and Caribbean snapping shrimp d. Drosophila e. none of the above 24. What type of constraint would nipples on men be? a. environmental b. genetic c. developmental d. A&C e B&C 25. Hawaiian Honeycreepers represent an important example of: a. Colorization b. Sexually monomorphism c. Adaptive Radiation d. Infertilization e. "ring species" 26. Explain why natural selection favors prezygotic barriers over post zygotic barriers. 27. Happyface spiders are examples of what kind of species? a. polymorphic b. cryptic c. paramorphic d. phenetic e. cannot be determined d States)