1. Chapter 2.2 Nutrition and Energy Flow

2. 2.2 Nutrition and Energy Flow  Autotroph- uses sunlight or chemical compounds to make own nutrients Ex. Plants, and some single-celled organisms like algae Also known as producers dnr.metrokc.gov/.../photos/SwimBeach005.jpgwww.cwss-scm.ca/Weeds/images/SDknotweed_flowe...

3. 2.2 Nutrition and Energy Flow  Heterotroph- must feed on other organism to get energy/nutrients Herbivores - Carnivores – Scavengers – Omnivores - Decomposers –  Responsible for recycling nutrients jowra.com/photos/photos/grasshopper.jpgwww.mccullagh.org/.../vulture-carass-gnawing.jpg share3.esd105.wednet.edu/.../Pictures/Conks.jpg

4. 2.2 Nutrition and Energy Flow  Flow of Matter and Energy All energy starts with sunlight. Food chain Trophic Level www.jenningsk12.net/.../food_chain.jpe

5. www.srd.gov.ab.ca/.../images/invert_chains_1.gif

6. 2.2 Nutrition and Energy Flow Food Web- more realistic www.coolantarctica.com/.../whales/foodweb.gif

7. 2.2 Nutrition and Energy Flow  Pyramid of Energy Energy available is only 10% of the previous trophic level’s energy. www.nre.gov.my/.../MarineEdu/seaocean/f3b.gif

8. 2.2 Nutrition and Energy Flow  Pyramid of Numbers - # of consumed organisms www.bbc.co.uk/.../science/images/bi01010.gif www.ux1.eiu.edu/~cfruf/images/bio3002/trophic...

9. 2.2 Nutrition and Energy Flow  Pyramid of Biomass Biomass – total mass or weight of all living matter in a given area. www.bbc.co.uk/.../science/images/bi01010.gif