Food chains & Food webs

3. an organism that is able to form nutritional organic substances from simple inorganic substances
5. Pyramid diagram that compares the biomass of different trophic levels within an ecosystem.
7. the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water.
8. Is hunted by predator
9. Chain a series of organisms each dependent on the next as a source of food.
11. They only eat plants
14. a relationship between individuals of two species in which one species obtains food or other benefits from the other without either harming or benefiting the latter.
15. Hunts prey
17. They only eat meat
18. any of a group of antibiotics with powerful bactericidal action, used to treat many types of infections
19. level each of several hierarchical levels in an ecosystem, consisting of organisms

1. symbiosis which is beneficial to both organisms involved.
2. web a system of interlocking and interdependent food chains.
4. a microorganism, especially a bacterium causing disease or fermentation.
6. an organism deriving its nutritional requirements from complex organic substances.
10. an organism that produces. (makes) its own food
12. the action of breathing.
13. a plastid in green plant cells which contains chlorophyll and in which photosynthesis takes place.
16. They eat both plant and meat