| A | B |
|---|
| All Earth | Pangaea is the name of the single landmass meaning... |
| eukaryotes | What term means to contain a nucleus and other complex structures in their cells? |
| techtonic plates | What term means a huge piece of crust that moves and thus moves the continents? |
| species | A group of organisms that are closely related and can mate to produce fertile offspring |
| evolution | The process in which inherited characteristics within a population change over generations such that new species sometimes arise |
| adaptation | A characteristic that improves an individual's ability to survive and reproduce in a particular environment |
| population | Groups of individuals of the same species living in the same place |
| natural selection | The process by which individuals that are better adapted to their environment survive and reproduce more successfully than less well adapted individuals do |
| speciation | The formation of new species as a result of evolution; this occurs when part of the population separates from the rest |
| adaptation | After groups have separated, natural selection acts differently on each |
| trait | A genetically determined characteristic that is passed from parent to offspring through genes |
| Geologic Time Scale | The standard method used to divide the Earth's long natural history into manageable parts |
| fossils | The remains or physical evidence of an organism preserved by geological processes |
| absolute dating | Any method of measuring the age of an object or event in years |
| relative dating | Any method of determining whether an event or object is older or younger than other events or objects |
| fossils | This is the remains or physical evidence of an organism preserved by geological processes |
| paleontologist | Which of the following is a scientist that uses fossils to reconstruct the history of life before humans existed? |
| plate techtonics | This is the theory that explains how large pieces of the Earth's outermost layer move and change shape |
| hominids | This is a type of primate characterized by bipedalism, relatively long lower limbs, and lack of a tail |
| homo sapiens | What is the species of hominids that includes modern humans and their closest ancestor and that first appeared about 100,000 to 160,000 years ago? |
