15. Which of the following will NOT promote speciation between populations of the same species? a geographic isolation b. gene flow c. genetic drift d. natural selection When a population goes through a bottleneck 16

9. Two lizard populations were found on opposite sides of a mountain. On a particular gene A, the following genotypes (together with the corresponding frequencies) were observed: AA Aa aa Population 1 38 Population 2 0 44 18 80 20 a. Calculate the frequencies of A and a in the two populations. а. b. Calculate and establish if either of the two populations appear to be at Hardy-Weinberg equilibrium. c. A huge flood opened a canyon in the mountain previously separating population 1 and 2. They were then able to migrate such that the two populations mixed completely and mated at random. Determine the genotype frequency of the next generation of the new combined population.

48. Coevolution can best be described as ________.   A. reciprocal evolutionary change among interacting species   B. an antagonistic relationship, where both participants have lower fitness   C. a mutualistic relationship, where both participants benefit   D. a change in allele frequency in a population over time   E. adaptations to the physical environment

25. Which letter indicates the most recent common ancestor between Tsavo and Zambia? a. A d. D b. B е. Е С. C 26. Which two species populations do you think are most related? a. Fannie Roberts and Umfolozi b. Sabi Sands and Zambia С. Umfolozi and Tiger

Can you please explain why E is correct?

32. What is a species? Group of answer choices a.Two populations that only interbreed very occasionally or rarely if at all. b.An interbreeding population. c.Two populations that never interbreed.