Details

Title: !5-1/15-3 Vocab

Description: Evolution, Theory, Fossil,

Total Flash Cards: 13

Created: 03/09/2009 16:30:02

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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.