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Enviormental Science
Vocab Chapeter 2 p. 47
| Term | Definition |
|---|---|
| abiotic factors | non-living parts of the ecosystem, temperature, sunlight, humidity, water supply, soil type and mineral nutrients such as nitrogen, phosphorus and sulfur. |
| adaptation | an inherited trait that increases an organisms chance of survival and reproduction in a certain enviorment. |
| biotic factors | the living parts of an ecosystem, the animals, plants and microorganisms. |
| coevolution | when two or more species evolve in response to each other. Examples: between predator and prey |
| commensalism | a relationship in which one species benefits and the other is neither harmed nor helped such as the interaction between remoras and sharks. |
| community | a group of interacting populations of different species. |
| competition | occurs when two or more organisms of the same or different species attempt to use the same limited resource. Ex: 2 plants competing for limited sunlight. |
| ecosystem | incudes all the different organisms living in a certain area along with their physical environment. |
| evolution | a change in the genetic characteristics of populations from one generation to the next is known as evolution |
| extinction | the irreversible disappearance of a population or a species |
| habitat | the actual place an organism lives |
| host | the organism the parasite takes its nourishment from is called the host |
| mutualism | a cooperative partnership between two species in which both species benefit. |
| natural selection | Darwin used natural selection to describe the Darwin used the term natural selection to describe the unequal survival and reproduction that results form the presence or absence of particular traits. |
| niche | way of life |
| organism | one individual living thing |
| parasites | organisms that live in or on another organism and feed on it without immediately killing it. |
| parasitism | the relationship between the parasite and its host |
| population | a group of individuals of the same species living in a particular place. |
| predation | one organism kills and eats another organism. |
| predator | the one that does the eating |
| prey | the organism that is eaten |
| species | a group of organisms that are able to produce fertile offspring, and that share common genes and therefore resemble each other. |
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ethanheiges
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