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Honors Biology Study Guide

Terms in this set (72)

Cladogram
diagram that shows the evolutionary relationships among a group of organisms
Classification
The process of grouping organisms based on their traits
Evolution
Change in organisms traits over time
Natural Selection
survival and reproduction of organisms due to differences in phenotype.
Artificial Selection
breeding organisms (by humans) for certain traits
Competition
organisms that need the same resources in an ecosystem
Fitness
Ability of an organism to survive and reproduce in its environment
Gene Pool
Combined genetic information of all the members of a particular population
Phenotype
An organism's physical appearance, or visible traits.
Genotype
An organism's genetic makeup, or allele combinations.
Allele Frequency
The frequency of alleles in a population
Speciation
Formation of new species
Allopatric Speciation
the process of speciation that occurs with geographic isolation
Sympatric Speciation
the evolution of one species into two, without geographic isolation
Ecology
The study of the interrelationships between life forms and their environment
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