2. https://encrypted-tbn1.google.com/images?q=tbn:ANd9GcQAEXerUrTGltkqpjeB5pVQ9tuumYcjA9TrfN1cncDzLFnZlclWyw https://encrypted-tbn1.google.com/images?q=tbn:ANd9GcQOrw1l8QB4vgR-iRd_PpH- GvaGT66s1ks2JJFHVqcbZCkpi4VH https://encrypted-tbn2.google.com/images?q=tbn:ANd9GcQLzI9lItHn2rscnwSi1tpvaciTyItSxswsgHNL0zkB88TcUV8VbA http://room42.wikispaces.com/file/view/frozen-tundra_60.jpg/34424225/frozen-tundra_60.jpg https://encrypted-tbn0.google.com/images?q=tbn:ANd9GcQnxqJkhff5jnciQJKPJMdz6NLOJ6wwS2F7Edc0pqviJKOwVP3U

3. Feeding Relationships  Producer  Autotrophs – make their own food  Convert solar energy into chemical energy  Examples: Plants (terrestrial), algae and phytoplankton (aquatic) http://www.chlorella-therapy.com/en/images/agaricus/p01/pict_02.gif

4. Feeding Relationships  Consumer  Heterotroph – gets food from their environment  Herbivores – eat plants  Carnivores – eat meat  Omnivores – eat plants and meat  Detrivores – feed on remains of organisms  Decomposers – break down organic matter  Examples: Animals, and some bacteria and protists. http://www.qrg.northwestern.edu/projects/marssim/simhtml/pics-for-sim/moose.jpg http://www.eoearth.org/images/191655/500x0/scale/grizzly_alaska_fr.jpg fireflyafrica.blogspot.com

5. Trophic Levels  Each link in a food chain is known as a trophic level.  Arrows show the flow of energy and go from prey to predator

6. Trophic Levels Food web: a. shows all possible feeding relationships in a community at each trophic level. b. represents a network of interconnected food chains. http://library.thinkquest.org/J0113170/forest/images/foodweb.jpg

7. Look at the crickets. What do they eat? Look at the Birds. What do they eat?

8. Trophic Levels :  Ecological Pyramid: show mass and energy at each trophic level  Biomass: the amount of organic matter comprising a group of organisms in a habitat.  As you move up a food chain, both available energy and biomass decrease.  Only 10% of the energy goes from one level to the next. http://2.bp.blogspot.com/-DrCjIUt1Cf8/TgV6AwF4QnI/AAAAAAAAADk/83PL8UPrXZ0/s1600/EnergyPyramid.gif