![]() ![]() ecological pyramid is a graphical representation of the relationship between different organisms in an ecosystem 23. biomass is the total amount of living tissue within a given trophic level 22. scavenger an animal that feeds on carrion, dead plant material, or refuse 21. producer is an organism that produces organic compounds from simple substances 20. photosynthesis is the process some organisms use to synthesize foods from carbon dioxide and 19. omnivores are an animal or person that eats food of both plant and animal origin 18. heterotroph is an organism deriving its nutritional requirements from complex organic substances 17. ![]() ![]() herbivore is an animal that feeds on plants 16. detritivore is an animal which feeds on dead organic material 15. decomposer is an organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material 14. consumer is an organism that relies on other organisms for its energy and food supply 13. chemosynthesis is the process in which chemical energy is used to produce carbohydrates 12. carnivore is an organism that obtains energy by eating animals 11. autotroph is an organism that is able to capture energy from sunlight or chemicals and use it to produce its own food from inorganic compounds also called a producer 10. species is a group of similar organisms that can breed and produce fertile offspring 9. population is a group of individuals of the same species living in the same area 8. niche is a full range of physical and biological conditions in which an organism lives and the way in which the organism uses those conditions 7. ecosystem is all the organisms that live in a place, together with their nonliving environment 6. ![]()
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