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AB Ch 7

Evolution of Whales evidence they lived on land, from ancient land mammals
Darwin did not know about genetics, explained how species changed over time
Sources of information Malthus, Lyell, Galapagos, selective breeding
Finches different beaks
Adaptation change in behavior or appearance in response to the environment
Natural Selection individuals better suited survive and reproduce, ex:, separation, adaptation, division
Evolution pop change slowly over time
Speciation begins with isolation
Trait characteristic passed from parent to offspring
Selective Breeding ex:, choosing parents because of the presence of a trait, not natural selection
Overproduction production of many offspring, few survive
Limitations starvation, disease, competition, predators
Inherited variation offspring are different
Fossils buried remains of plants and animals
Relative age deeper fossils= older
Division separated groups can not mate
Competition (struggle to survive)
Successful reproduction surviving and passing traits to offspring
DNA similar in closely related species
Speciation formation of a species, starts with isolation
Selective breeding breeding animals with desirable traits
Population same species living in the same place at the same time
Species look alike and produce fertile offspring
Fossil Record timeline of life
Common ancestor reason organisms share similar DNA and traits
Resistance insecticides
Created by: evroman