Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
vocab 4/11
evolution
| Term | Definition |
|---|---|
| species | a group of similar organisms whose members can mate with one another and produce fertile offspring. |
| adaptation | a characteristic that helps an organism survive in its environment or reproduce |
| evolution | the gradual change in a species over time |
| scientific theory | a well tested concept that explains a wide range of observations |
| natural selections | the process by which individuals that are better adapted to their environment are most likely to survive and reproduce then other members of the same species |
| variations | any difference between individuals of the same species |
| fossil | the preserved remains or traces of an organism that lived in the past. |
| extinct | a species that does not have any living members |
| gradualism | the theory that evolution occurs slowly but steadily |
| punctuated equilibre | the theory that species evolve during short periods of rapid change. |
| homologous structures | body parts that are structurally similar in related species: provide evidence that the structures were inherited from a common ancestor. |
| relative dating | a technique used to determine which of two fossils is older |
| half-life | the time it takes for half of the atoms of a radioactive element to decay |
| fossil record | the millions of fossils that scientists have collected. |
Created by:
cmclamb1
Popular Physical Science sets