30). An extremely harsh winter causes the death of 75% of Laura’s peach tree population. When considering the future survival of this peach tree population, which of the following is a concern for Laura?

23). Which of the following is a stressor for city mice?

37). Different environments are responsible for _____.

33). How does inbreeding in a population affect the gene pool of that group of organisms?

Suppose you discover a mutant yeast whose glycolytic pathway is shorter because of the presence of a new enzyme that catalyzes the reaction: glyceraldehyde 3-phosphate + H2O + NAD+ —–> 3-phosphoglycerate + NADH + H+ Although this mutant enzyme shortens glycolysis by one step, how does it affectanaerobic ATP production? ? 

20).                               movement of alleles from one population to another. This could increase genetic diversity.

32). The leopard frog mates in early spring and the bullfrog mates in early summer. This is an example of _____.

3). What would you need to measure to be able to tell if a population was evolving?

22). Which of the following is a human-caused environmental change that animals face?

17). Is natural selection the same thing as survival of the fittest?