Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
AB Ch.18 Sec.3
Ch.18 Sec.3
| Question | Answer |
|---|---|
| producer | an organism that can make organic molecules from inorganic molecules; a photosynthetic or chemosynthetic autotroph that serves as the basic food source in the ecosystem |
| chemosynthesis | the production of carbohydrates through the use of energy from inorganic molecules instead of light |
| gross primary productivity | the rate at which organic matter is assimilated by plants and other producers during a period of time during a certain area |
| biomass | an organic material that has been produced in an ecosystem |
| net primary productivty | the rate at which biomass accumulates in an ecosystem |
| consumer | a consumer that eats other organisms or organic matter instead of producing its own nutrients or obtaining nutrients form inorganic sources |
| herbivore | an organism that eats only plants |
| carnivore | an organism that eats animals |
| omnivore | an organism that eats meat and plants |
| detrivore | a comsumer that feeds on dead organisms or on the parts or wastes of other organisms |
| decomposer | an organism that feeds by breaking down organic matter from dead organisms: examples inlcude bacteria and fungi |
| trophic level | anorganisms relative position in a sequence of energy transfers in a food chain or food pyramid, exmaples include producers and primary, secondary, and tertiary consumers |
| food chain | a single pathway of feeeding relationships among organisms in an ecosystem that results in an energy transfer |
| food web | interrelated food chains in an ecosystem |
Created by:
burkea15
Popular Biology sets