| Term | Definition |
|
biotic factors |
living things in an ecosystem |
|
abiotic factors |
non-living things in an ecosystem |
|
niche |
how an organism makes its living |
|
biodiversity |
number of different species in an ecosystem |
|
symbiosis |
one species of organism lives in a close relationship to another species |
|
parasitism |
a close relationship; one species benefits, the other is harmed |
|
mutualism |
a close relationship; both species benefit |
|
commensalism |
a close relationship; one species benefits, the other doesn't benefit but isn't harmed |
|
habitat |
the natural place where an organism lives |
|
predator/predation |
kills and eats an organism |
|
prey |
is killed and eaten |
|
respiration |
breaks down carbohydrates for energy; uses oxygen, gives off carbon dioxide |
| Add or remove terms from this set |