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Enviro Sci Ch. 2
Chapter 2 vocabulary words and definitions
Term | Definition |
---|---|
adiotic factors | some adiotic factors that influence living things are tamperature,sunlight,humidity |
biotic factors | are the living parts of a ecosystem |
commensalism | is a relationship in which one species benifits and the other is neither harmed nor helped |
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 |
ecosystem | includes all the different organisms living in a certain area along with their physical environment |
evolution | a change the genetic characteristics of populations from one generation to the next |
extinction | the irreversible disappearance of a population or a species |
habitat | the actual place an organism lives |
adaptation | an inherited trait that increases an organisms chance of survival and reproduction in a certain environment |
coevolution | when two or more species evolve in response to each other |
host | the organism the parasite takes its nourishment from |
mutualism | a cooperative partnership between two species in which both species benefit |
natural selection | describes the unequal survival and reproduction that results from the presence or absence of particular traits. |
niche | its 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 | relationship between the parasite and its host |
population | a group of individuals of the same species living in a particular place |
predation | one organisms kills and eats another organism |
predator | the one that does all 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 |