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Intro to Populations
| Term | Definition |
|---|---|
| Organism | An individual living thing |
| Species | A group of organisms that are closely related and that can mate to produce fertile offspring |
| Population | All the members of the same species that live in the same place at the same time |
| Community | A group of various species that live in the same place and interact with each other |
| Habitat | The place an organism lives |
| Biodiversity | The variety of life on Earth, or a particular ecosystem |
| Endangered Species | A species that is likely to become extinct in the near future |
| Biodiversity Treaty | Treaty created by the UN to preserve the variety of life in the world |
| Poaching | Illegal hunting, fishing, or harvesting of wildlife |
| Threatened Species | A species that has a declining population and is likely to become endangered in the near future |
| Endangered Species Act | Act created by the US to stop the harm of endangered species |
| Climate Change | a change in global or regional climate patterns, in particular a change apparent from the mid to late 20th century onwards and attributed largely to the increased levels of atmospheric carbon dioxide produced by the use of fossil fuels. |
| Anthropocene Effects | is sometimes used to simply describe the time during which humans have had a substantial impact on our planet. |
| Five Known Mass Extinctions | Ordovician-silurian Extinction: 440 million years ago. Small marine organisms died out. Devonian Extinction: 365 million years ago. ... Permian-triassic Extinction: 250 million years ago. ... Triassic-jurassic Extinction: 210 million years ago. ... Cr |