Do you think that the growth of the cotton industry in the South led to the start of the Civil War or do you think the Civil War would have happened at that time anyway? Why or why not?

What are two reasons for why a species might disappear from the fossil record?

Read the following scenario to answer the following question. in some zoos, rare crosses between a male lion and a female tiger have produced hybrid offspring called "ligers." male ligers are sterile but some female ligers are fertile. in the wild, lion and tiger ranges do not naturally overlap, making such a cross unlikely. furthermore, the solitary behavior of tigers and the social organizations of lions create behavioral differences. applying the biological species concept, the sterility of ligers reveals that a. lions are probably a subspecies of tigers b. tigers and lions are the same species c. a new species called "ligers" is forming d. tigers and lions are separate species

How does a lytic infection differ from a lysogenic infection?