Ecology - A branch of science that deals with the relation of organisms to one another and their physical environment.⏎
Cirrhosis - A condition caused by chronic liver disease characterized by the development of scar tissue leading to a loss of liver function.⏎
Endemic - The baseline level of disease usually present in a community.⏎
Exoskeleton - An external skeleton that protects and supports an organism, in contrast to an internal endoskeleton.⏎
Genetics - A branch of biology that studies heredity and variation in organisms.⏎