Chapter 14 (Read pages 278-289)1.) Is the earth inhabited solely by highly adapted versions of the first life forms on earth?2.) What is speciation?3.) How does the biological species concept define a species?a. The biological species concept has limitations. Give an example of a species that cannot be defined using the biological species concept.4.) Reproductive isolation keeps species separate from one another. What is reproductive isolation?5.) How does the morphological species concept define a species? Are there any limitations to the morphological species concept? If so, what are they?6.) Which species concept would classify two species of birds that look alike but inhabit different trees?7.) When a species is defined as a small group of individuals that share a common ancestor, which species concept is used?8.) How does a pre-zygotic barrier differ from a post-zygotic barrier?9.) How can a species habitat prevent it from mating with another species?10.) Can an organisms breeding season prevent it from mating with another species?11.) How is the blue-footed booby dance an example of behavioral isolation?12.) How does mechanical isolation differ from gametic isolation?13.) The mule is an example of a species with reduced hybrid fertility. Is the mule also an example of hybrid breakdown? Why or why not?14.) True or False? When a geographic barrier isolates a population it can lead to sympatric speciation. Defend your answer.15.) On average, about 6.5 million years go by between speciation events. Can speciation occur over shorter time frames or is it limited to longer time frames?
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