Honors Bio Vocab 7A

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15 terms · Unit 7A vocabulary Evolution

NATURAL SELECTION

DARWIN'S THEORY THAT PROPOSED THE MECHANISM FOR DECENT WITH MODIFICATION (ONLY THE STRONG SURVIVE)

FOSSIL

REMAINS OR TRACES OF AN ORGANISM THAT DIED LONG AGO

COEVOLUTION

TWO OR MORE SPECIES EVOLVING IN RELATIONSHIP TO EACH OTHERS INFLUENCE

ADAPTATION

A TRAIT THAT MAKES AN ORGANISM MORE SUCCESSFUL OR LIKELY TO SURVIVE

MICROEVOLUTION

EVOLUTION AT THE GENETIC LEVEL WITHIN A POPULATION

GENE POOL

TOTAL GENETIC INFORMATION AVAILABLE IN A POPULATION

FITNESS

AN INDIVIDUALS HEREDITARY CONTRIBUTION TO THE NEXT GENERATION
(SURVIVE + REPRODUCE)

IMMIGRATION

MOVEMENT OF ORGANISMS INTO A POPULATION

EMIGRATION

MOVEMENT OF ORGANISMS OUT OF A POPULATION

SPECIATION

PROCESS OF SPECIES FORMATION

GENETIC DRIFT

PROCESS BY WHICH ALLELE FREQUENCIES IN A POPULATION CHANGE AS A RESULT OF A RANDOM EVENT OR CHANCE

SEXUAL SELECTION

PROCESS IN WHICH FEMALES CHOOSE A MATE BASED ON CERTAIN TRAITS

HOMOLOGOUS STRUCTURE

SIMILAR ANATOMICAL STRUCTURES THAT APPEAR IN DIFFERENT SPECIES

ANALOGOUS STRUCTURE

STRUCTURES THAT HAVE THE SAME FUNCTION OR PURPOSE BUT DO NOT COME FROM THE SAME ANCESTOR

VESTIGIAL STRUCTURE

STRUCTURES THAT SERVE NO SPECIFIC FUNCTION BUT RESEMBLE STRUCTURES IN RELATED ORGANISMS

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