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chapter six vocab

QuestionAnswer
the process ny which indaviduals are better adapted to their evirment and are more likely to survive and reproduce natural selection
any difference between individuals of the same species variation
the time it takes for half of the atoms in a sample to daccay half life
a well tested concept that explains a wide range of observation scientific theory
the theory that speacies evolve quickly during a short burst of time punctuated equilbria
documentation of fossils scientist have collected over time fossil record
unsrtable elements that decay or break down radioactive element
simaler structure that related species have inherited from common ancestors homolygous structures
a hollow space left where the fossil decayed or dissolved mold
a process comparing the age of two fossils by their placement in layers relative dating
gradual changes in species over time evolution
fossils that are buried in sediments and actually changed to rock petrified fossil
a trait that helps and organism survive and reproduce adaption
the theory that evolution occurs slowly bet steadily gradualism
a diagroam that show how scientists think different organisms are realted branching tree
a process that test the radioactive materials within a fossil to tell its actuall age radioactive dating
preserved remains of a organism that lived in the past fossil
when no member of the species is alive extinct
a copy of the shape of the organism that made is cast
the factor in natural selection as organisms attempt to survive using limited resources competition
evidence that related dpecies had a common ancestor because of the way their bodies are anatomically constructed in simalar ways homozygous structures
the factor in natural selection that happens when there are more offsrping than can possibly survive on given resources overproduction
a group of organisms that can mate together and produce fertile offspring species
Created by: Demitri Panos
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