fossil - the remains of parts of an organism such as bones, teeth, feathers., evolution - a change in the allele frequencies in a population over time, Extinction - The disappearance of a species, common ancestor - the organism that came before two or more organisms (descendents), population - a group of the same organism in a given area, Charles Darwin - a naturalist who contributed to the theory of evolution, Mass Extinction - A period of time when more than 50% of all existing species died out globally., Deforestation - Cutting down trees in large number which destroys habitat., Climate Change - The environment is changing too quickly for organisms to pass on favourable genes allowing the population to adapt to the new environmental conditions., Introduced Species - Plants or animals that are not native to an area and are better able to hunt or find shelter than the native species., Hunting - A human activity which greatly increases the death rate of species., Zoo - A collection of animals which can be used for captive breeding programs and then reintroduced to the wild., Habitat protection - fencing off existing areas to protect the species that live there, Relative Dating - Digging into the earth, the fossils that are found closer to the surface are more recent, Absolute dating - detecting ratios of different isotopes (e.g. Carbon-14) of the same element in the fossil,

Evolution Revision

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