Asystem is a group of related parts with specific roles that work together to achieve an observed result. if a body system, such as the digestive system, fails to work properly, what would happen to the organism? a. the organism would not be able to function properly. b. the defective system would regenerate into a new, working system. c. the organism would immediately evolve so the defective system is no longer necessary. d. the other organ systems would compensate for the defective system.

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 following is an effect of the uneven heating of the earth by the sun? a sea breeze a land breeze a convection current all of the above

Is there any solid scientific evidence that humans have been cloned?