Biology Part 3

remains of once living creatures

laers of rock or sedimentary material

distribution of life-forms on Earth

belief by James Hutton that geological forces act at a continuous, uniform rate

formation of new species

any characteristic that makes an organism more suited to an environment

mechanism of evolution caused by environmental selection of oganisms most fit to reproduce

reproductive success of an individual relative to other members of a population

breeders select animals with particular traits to reproduce