Darwin, Lamarck, or Both? Question 1: Once the drought caused small seeds to almost disappear, finches that happened to be born with beaks deep enough to ear large seeds had the advantageous trait.

Question 2: During the drought, the smallest beak was now disadvantageous so the finches GREW big beaks.

Question 3: The average finch beak size increased because the available food on Daphne Major changed as a result of the drought.

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

Which of the organisms listed below performs nitrogen fixation? a. legumes b. plants c. bacteria d. fungi

Which chemical bond most likely stores the most energy? o a. double carbon-carbon bond o b. single carbon-carbon bond o c. hydrogen-oxygen bond o d. sodium-chlorine bond