Evolution theory - created from Mind Map

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def: modern organism descended with modification from preexisting life forms

formulated by Charles Darwin & Alfred Russel

3 natural processes:

evidences: fossils, geological studies, genetics..etc

genetic variation

inheritance

natural selection

among members of a population

molecules of heredity = DeoxyriboNucleic Acid

segments of DNA = genes

changement in genes = mutation

effects:

harmless

death of organism

diseases

help orgs survive & reproduce

of the variations of the offsprings

org's DNA is contained in chromosomes

reproduction -> offspring receives a copy of their parents chromosomes

survival and enhanced reproduction of organisms with favorable variations

orgs that best meets the environmental challenges produces more offspring

preserves genes that help orgs flourish

adaptation: structures, physiological processes, behaviors that hep in survival & repro in a environment

good in one envo & bad in another

no adaptation -> extinction of species