Terms : Hide Images
| 90326893 | heterotrophs | organisms that cannot photosynthesize (other-feeders) | |
| 90326894 | autotrophs | self feeders | |
| 90326895 | producers | produce food for themselves using nonliving nutrients and sunlight | |
| 90326896 | consumers | must acquire energy and many of their nutrients prepackaged in the molecules that comprised the bodies of other organisms | |
| 90326897 | net primary productivity | the energy that photosynthetic organisms store and make available to other members of the community over a given period of time | |
| 90326898 | biomass | dry-weight of organic material stored in producers that is added to the ecosystem per unit area during a specific time | |
| 90326899 | tropic level | feeding level | |
| 90326900 | herbivores | plant eaters | |
| 90326901 | primary consumers | form form the second tropic level; herbivores | |
| 90326902 | carnivores | meat eaters | |
| 90326903 | food chain | linear feeding relationship | |
| 90326904 | food web | show many interconnecting food chains; more accurately describes feeding relationships | |
| 90326905 | detritus feeders | an army of mostly small and often unnoticed animals that live on the refuse of life (debris) | |
| 90326906 | decomposers | primarily fungi and bacteria that digest food outside their bodies by secreting digestive enzymes into the environment | |
| 90326907 | nutrient cycle | biogeochemical cycles; describe the pathways these substances follow as they move form communities to nonliving portions of ecosystems and back again to communities | |
| 90326908 | reservoirs | the ultimate sources and storage sites of nutrients | |
| 90326909 | fossil fuels | fuel formed from the remains of ancient forms of life | |
| 90326910 | hydraulic cycle | the water cycle | |
| 90326911 | acid disposition | acid rain | |
| 90326912 | deforestation | the destroying of tens of million of forested areas annually | |
| 90326913 | greenhouse gases | a gas that traps sunlight energy in a plants atmosphere as heat, a gas that participates in the green house effect | |
| 90326914 | greenhouse effect | the ability of greenhouse gases to trap the sun's energy in a planets atmosphere as heat | |
| 90326915 | global warming | a gradual rise in global atmosphere temperature as a result of the natural greenhouse effect due to human activities |
