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19 Cards in this Set
- Front
- Back
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Gradualism
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Theory that describes evolution as a slow change of one species to another new species
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Embryology
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The study of the development of embryos.
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Variation
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an inherited trait that makes an individual different for other members of the same species
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Punctuated equilibrium
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A model of evolution that shows that the rapid evolution of species comes about by the mutation of a few genes
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Natural selection
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Theory that individuals of a species with traits most favorable for a specific environment survive and pass on these traits
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Homo sapiens
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The species that we belong to.
We are Homo sapiens sapien |
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Hominids
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A human like primate that eat both meat and plans and walk upright on two feet
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Vestigial structure
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A body part that is reduced in size and doesn't seem to have a function.
Appendix |
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Extinction
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the dying out of a species
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Endanger species
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a species who's numbers are so low that it is in danger of becoming extinct
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Population
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A group of organisms of one species living together in an area.
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Sedmentary Rock
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A rock type formed from layers of material (sand, silt, clay or minerals) that settle out of a liquid (water)
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Relative dating
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Dating fossils by there relationship to other rock layers above and below. Older rock layer below younger rocks layers.
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Homologous structures
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Body parts that are similar in origin and structure.
Limbs |
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Radioactive elements
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Elements whose atoms give off radiation, a form of atomic energy
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Fossils
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Remains of an organisms from an earler geologic time
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Evolution
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change in the hereditary features of a species over time
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Species
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a group of organisms whose members look alike and sucsessfully reproduce among themselves
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Primates
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A group of mammals that include monkeys, apes and humans.
(have opposable thumb) |
