| A | B |
|---|
| abiotic factors | nonliving parts of an ecosystem. Ex. temperature, sunlight, mineral nutrients, etc. |
| adaptation | an inherited trait that increases an organisms's chance of survival and reproduction in a certain environment |
| biotic factors | living parts of an ecosystem. Ex. plants, animals and microorganisms |
| coevolution | two or more species evolve in response to each other. Ex. crabs and snails |
| commensalism | relationship in which one animal benefits and the other is not helped or harmed. Ex. remoras and sharks |
| community | a group of interacting populations of different species |
| competition | relationship between species in which they 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 in the genetic characteristics of populations from one generation to the next generation |
| extinction | disappearance of a population or species |
| habitat | where an organism lives (address) |
| host | the organism that a parasite takes nourishment from. |
| mutualism | cooperative relationship between two species. Ex. ants and acacia trees. |
| natural selection | the unequal survival and reproduction that results from the presence or absence of particular traits. |
| niche | an organisms relationship with its environment, its way of life |
| organism | one individual living thing. |
| parasite | organism that lives on or in another organism and feeds on it slowly harming its host |
| parasitism | the relationship between a parasite and a host. |
| population | a group of individuals of the same species living in a particular place. |
| predation | relationship in which one organism hunts, kills and eats another organism |
| predator | the organism that hunts and eats another organism |
| prey | the organism that is eaten by a predator |
| species | group of organisms that are able to repoduce together and share common genes and resemble each other. |
