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Theory of Evolution

QuestionAnswer
theory widely accepted explanation of a natural phenomenon that has ample evidence to support it
artificial selection selectively breeding for desired traits by choosing parents, Darwin bred roosters
fitness live longer and reproduce more
species any group of organisms
natural variation random changes or mutations in DNA
Adaptation a mutation that an organism is born with that helps the species survive to reproduce
Selective Breeding breeding for wanted or necessary traits (dogs, horses)
Variation Many traits in a gene pool
Natural Selection Having traits that help a species survive in a new environment
Survival of the Fittest the organism that best suits the environment survives
Darwinism The theory that evolution exists
Neodarwinism the theory that evolution exists when including genes
speciation When one part of the species is separated from the rest of the species and changes so much it can no longer mate
Sexual Selection having exadurated traits that help get a mate (and reproduce)
Charles Darwin British, HMS beagle, galapagos islands, theory of evolution
What supports the theory of evolution fossils, bacteria, genes
How does a new species form? 1. geographic isolation 2. random mutations
Common Descent Principle that all living things have a common ancester
Homologous Structure Structures thta have different mature forms in different organisms but develo from the same embryonic tissues
Evolution The Theory that explains how organisms change over long periods of time
Genetic Variation The differences between 2 members of a population because they have differences in their genes.
Population A group of the same species that live in the same area
Law of Succession living species in a given geographic areas
Ecological Genetics •Involves changes in the gene pool and physical expressions of the genetic constituents
INDIVIDUAL SELECTION •In nature, whole groups don't die out - individuals do so they would be the more powerful evolutionary force
Hybridization Breakdown in isolating mechanisms
Created by: CrisssJ
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