| A | B |
|---|
| competition | organisms struggling for the same resource |
| symbiosis | organisms living in a close relationship |
| mutualism | both organisms benefit |
| commensalism | one organism benefits; no effect to other |
| parasitism | one organism benefits; one is harmed |
| predation | one organism eats the other |
| photosynthesis | process of converting light energy to chemical energy |
| photosynthesis equation | Carbon dioxide + water = glucose + oxygen |
| respiration equation | food + oxygen = carbon dioxide + water |
| pollutants | substances harmful to the environment |
| acid rain | pollution causing pH to be raised |
| global warming | increasing of earth's temperature |
| greenhouse effect | trapping of sun's energy |
| conservation | wise use of resources |
