Which of the following questions would a scientist most likely ask to determine whether various finch populations belong to one species? A. Do the various finches have similar average life spans?
B. Do the various finches often eat the same types of food?
C. Do the various finches have a wide range of average body sizes?
D. Do the various finches often mate and produce fertile offspring together?

If all prokaryotes on earth suddenly vanished, which of the following would be the mostlikely and most direct result? a) the number of organisms on earth would decrease by 10—20%.b) human populations would thrive in the absence of disease.c) bacteriophage numbers would dramatically increase.d) the recycling of nutrients would be greatly reduced, at least initially.e) there would be no more pathogens on earth.