| A | B |
|---|
| ecology | the study of relationships between living things and their physical environments |
| ecosystem | an area in which living and nonliving things INTERACT |
| water,to exchange gas, energy (food), to eliminate waste | what living things NEED |
| react/respond to their environment, grow, produce offspring | what living things DO |
| biotic | living |
| abiotic | nonliving |
| organism | any living thing |
| community | all the organisms LIVING TOGETHER in a particular ecosystem |
| population | a group of the SAME KIND of organisms that live in an area |
| qualitative observations | observations made using the 5 senses |
| quantitative observations | observations made using measuring tools, or by counting |
| system | a group of interacting, interrelated, or interdependent elements forming a complex whole |
