A population of squirrels lived together in a forest. An event occurred that caused the population to diverge into two different
2 answers:
3 = - 1 Figure 18.23 in (a) gradual speciation, species diverge Maslow, steady pace as traits change incrementally in () punctuated equilibrium, species diverge quickly and then remain unchanged for long periods of time. Which of the following statements is false? Punctuated equilibrium is most likely to occur in a small population that experiences a rapid change in its environment b. Punctuated equilibrium is most likely to occur in a large population that lives in a stable climate C. Gradual speciation is most likely to occur in species that live in a stable climate d. Gradual speciation and punctuated equilibrium both result in the divergence of species 2. Figure 18.22 If two species eat a different diet but one of the food sources is eliminated and both species are forced to eat the same foods, what change in the hybrid zone is most likely to occur? Changes in the Hybrid Zone over Time Reinforcement: than the purebred Fusion Reproductive hamers weaken the two species become hybrids continue to be produced can no longer Ocu Figure 18.22 After speciation has occurred, the two separate but closely related species may continue to produce offspring in an area called the hybrid zone. Reinforcement, fusion, or stability may result, depending on reproductive barriers and the relative fitness of the hybrids.
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