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DLT lesson 3
Evidence of Evolution
Term | Definition |
---|---|
fossil | the trace or remains of an organism that lived long ago, most commonly preserved in sedimentary rock |
fossil record | provides evidence about the order in which species have changed over time |
amber | tree sap that has hardened |
sedimentary rock | Rock that has formed through the deposition and solidification of sediment, especially sediment transported by water, ice, and wind. Sedimentary rocks are often deposited in layers, and frequently contain fossils. |
common ancestor | the most recent species from which two different evolved |
evidence | available facts that determine if something is true or false |
embryology | the study of development over time in embryos |
molecule | a group of atoms bonded together |
transitional characters | features of an animal that are not quite the same as a known animal |