RNR 1001 Lecture : Lecture 6
Document Summary
Organisms in ecosystems can be grouped into trophic levels: tropic (food) structure (trophic is feeding) Photosynthesis - co2 + h2o + sunlight = ch2o (sugar) + o2 (oxygen) Ecology of natural resources organisms which are able to take pp (plant material) and convert it to secondary production (animal material) Secondary consumers - carnivores secondary production, a flesh-eating organisms. Decomposers; very important to ecology to reintroduce nutrients to the food animals that feed on dead material fungi and bacteria that feed on dead material organisms that eat plant and animal material. Crabs, blue-jay, fox, bear still secondary production, a flesh-eating organisms. Sun light produces plants (primary production) herbivores eat plants (secondary. Use the term food web, not food chain. The 1st law of thermodynamics: energy can not be created or destroyed, only changed in form. The 2nd law of thermodynamics: there is energy loss when energy goes from one form to another.
