1. Page 12 in notebook CONCEPT QUIZ #7
UNIT 2 Chapter 5 Notes
Page 12 in notebook
CONCEPT QUIZ #7

2. Energy flowing in ecosystem
PHOTOSYNTHESIS -
6CO2 + 6H2O + Solar Energy -> C6H12O6 + 6O2
PRODUCERS – AUTOTROPHS (self-feeders) use Photosynthesis or Chemosynthesis
CELLULAR RESPIRATION - C6H12O6 + 6O2 -> 6CO2 + 6H2O + Energy
CONSUMERS – HETEROTROPHS (other-feeders) use Cellular Respiration/Digestion
OMNIVORES
HERBIVORES
CARNIVORES
Decomposers 

3. Consumers eat to get energy
FOOD CHAIN – sequence in which energy is transferred from one organism to the next as each organism eats another organism
TROPHIC LEVELS – steps through which energy is transferred in a food chain
ENERGY PYRAMIDS –energy is lost from one trophic level to the next
FOOD WEB –many feeding relationships possible
STARTS WITH SUN! 

4. Cycling Matter (nutrients)
CARBON CYCLE – carbon is cycled between atmosphere, land, water and organisms

5. NITROGEN CYCLE – organisms need nitrogen to build proteins but they cannot use atmospheric nitrogen, they must get it when they eat plants PHOSPHOROUS CYCLE – movement of phosphorous from the environment to organisms

6. Ecosystems change
ECOLOGICAL SUCCESSION – gradual change + replacement of species in a community, takes generations