Details Title: !5-1/15-3 Vocab Description: Evolution, Theory, Fossil, Total Flash Cards: 13 Created: 03/09/2009 16:30:02		New Users: To study from this flashcard set, or to create your own your own study flash cards, REGISTER HERE. Existing Users: CLICK HERE. Additional Biology Flashcards
Cards in this set: Term Evolution Definition The change over time, by which modern organisms have descended from ancient organisms. Term Theory Definition A well supported, and testable explanation of phenomona that have occured in the natural world. Term Fossil Definition Preserveed remains of ancient organisms Term Artificial Selection Definition Selection by humans for breeding of useful traits from a variation of organisms. Term Struggle For Existence Definition Competition among some species for food, living space, and other neccessities of life. Term Fitness Definition Ability for an organism to survive and reproduce in it's enviorment. Term Adapation Definition Inherited characteristic that increases an organisms chance of survival. Term Survival Of The Fitess Definition Process by which individuals that are better suited to their enviorment survive, eat, and reproduce most successfully. Term Natural Selection Definition (Same as Survvival Of The Fitess) Term Descent W/ Modification Definition Principle that each living species has descended with changes from other species over time. Term Common Descent Definition Principle that al living things were derived from common ancestors. Term Homologous Structure Definition Structures that have different nature forms in different organisms but develop from the same embryotic tissues. Term Vestigial Organ Definition Organ that serves no usefull function to all organisms.