Other Free Encyclopedias » 21st Century Webster's Family Encyclopedia » 21st Century Webster's Family Encyclopedia - A to Akutagawa, Ryunosuke



Adaptation, an organism's adjustment to its environment in order to survive, believed to arise from transmitted genetic variations preserved by natural selection. Successful and versatile adaptation in an organism leads to widespread distribution and long-term survival. Examples include the development of lungs in amphibians and of wings in birds and insects.

See also: Acclimatization; Evolution.

Jane Addams [next] [back] Sherman Adams

User Comments

Your email address will be altered so spam harvesting bots can't read it easily.
Hide my email completely instead?

Cancel or