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Chapter 16

Biology

TermDefinition
Evolution -change over time; the process by which modern organisms have descended from ancient organisms
Fossil -preserved remains or traces of ancient organisms
Artificial Selection -selective breeding of plants and animals to promote the occurrence of desirable traits in offspring
Adaptation -heritable characteristic that increases an organism's ability to survive and reproduce in an environment
Fitness -how well an organism can survive and reproduce in the environment
Natural Selection -process by which organisms that are most suited to their environment survive and reproduce most successfully; also called survival of the fittest
Biogeography -the study of past and present distribution of organisms
Homologous Structures -structures that are similar in different species of common ancestry
Analogous Structures -body parts that share a common function, but not structure
Vestigial Structure -structure that is inherited from ancestors but has lost much or all of its original function
Created by: kowitzc18
 

 



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