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14 terms

biology terms and defenitions

biology terms and defintions
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evolution
change in a kind of organism over time
theory
well tested explenation that unifies a broad range of observations
fossils
preserved remains or evidence of an efficient organism
natural varitaion
diffrences among individuals of a species
artificial selection
selection by human for breeding of useful traits
struggle for exsistence
completion among members of a species for food, living space, and other necesity of life
fitness
ability of an organism to survive and reproduce in its enviroment
adaption
inherited characteristic that increases an organisms chance of survival
survival of the fittest
process by which individuals that are better suited to their enviroment survive and reproduce
natural selection
process by which individuals that r better suited to their enviroment survive and reproduce mostly sucessful
descent with modification
principle that each living species has decended which change from another species over time
common decent
principle that all living things have a common ancestor
homologus structure
structures that have diffrent structure forms
vestgial organ
organ that serves no usefulo function in the organism