BIOL 226 Lecture Notes - Lecture 12: Lake Trout, Forage Fish, Nitrogen Fixation

• School: Concordia University
• Department: Biology
• Course: BIOL 226
• Professor: Jim Grant

Document Summary

Write down the 5 key concepts of the chapter. Ecosystem primary producers primary, secondary and tertiary consumers decomposers primary production. Gpp, npp and nep eutrophication secondary production trophic efficiency biogeochemical cycles the 2 processes that run the carbon cycle? nitrogen fixation. Try the 8 multiple choice questions: what would happen if decomposition stopped, list two emergent properties of ecosystems. 55. 4): nitrogen is abundant in the atmosphere and yet often limits primary production. Explain: why does co2 concentration vary seasonally in the atmosphere, energy flows but nutrients cycle. Explain using the laws of thermodynamics: people are vegetarians for many different reasons.