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8U3C2

Evolution

TermDefinition
evolution The gradual change and development of a species over the course of many generations
Jean-Baptiste Lamarck developed the first cohesive theory of evolution after his studies of biology
Charles Darwin a scientist who developed a theory of evolution by natural selection
survival of the fittest a natural process resulting in the evolution of organisms best adapted to the environment.
extinction all members of a species die
variation genetic differences between individuals within a species
adaptation inherited variations that make an organism better suited to its environment
common ancestry a group of organisms that share a biological ancestor
fossils the preserved remains or traces of organisms that once lived on Earth
embryology study of embryos and their development
homologous structures similar body structures on different species
vestigial structures a structure that is present in an organism but no longer serves its original purpose
primates a group of mammals that includes humans, apes, monkeys, and lemurs
Hominid humanlike primates that walked on two legs
Lucy a 3.2 million-year old fossil skeleton of a human ancestor
Homo habilis hominid found with tools; handy man
Homo sapiens wise human being
Homo sapiens sapiens modern humans; wise wise human beings
Neanderthals first to hunt in groups; care for the sick; have ritual burials
Cro-Magnon made new tools, planned hunts, migrated; known for cave paintings
Created by: Ms. Greenup
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