| A | B |
|---|
| ecosystem | ALL of the organisms in an area plus their physical environment |
| biotic factor | Living and once living parts of an ecosystem |
| abiotic factor | Nonliving parts of the ecosystem |
| organism | individual living thing |
| species | group of organism that can mate and produce fertile offspring |
| population | all the members of same species in same place and time (all of the bunnies in that forest now) |
| community | group of various species live in same place and interact with each other (all the animals of the forest) |
| habitat | place an organism lives (forest, desert etc) |
| natural selection | the survival and reproduction of organisms with favorable traits (helps them survive) |
| evolution | change in genetics of population from one generation to the next |
| adaptation | inherited trait that increases organism's chance for survival and reproduction in certain environment |
| artificial selection | selective breeding of organism by humans for specific traits |
| resistance | ability of one or more organisms to tolerate a particular chemical designed to kill it |
| Archaebacteria | ancient bacteria found in extreme places like hot springs |
| Eubacteria | common "true" bacteria found in soil and animal bodies |
| fungus | organism whose cells have nuclei and cell wall. they are decomposers and break down organic material (mushrooms) |
| protist | diverse group one-celled organism and many-celled relatives (kelp, amoeba, euglena in pond water) |
| gymnosperm | woody plants produce "naked" seeds without a fruit sometimes has a cone; conifers |
| angiosperm | flowering plants that produce seeds in a fruit (grasses, flowers, fruits, vegetables) |
| invertebrate | animals that have no backbone (slugs, cuttlefish, jellyfish, insects) |
| vertebrate | animals with a backbone (fish, reptiles, birds, mammals) |
