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Chapter 2.2

Chapter 2.2. Nutrition and Energy Flow. 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. www.cwss-scm.ca/Weeds/images/SDknotweed_flowe.

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Chapter 2.2

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  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 www.cwss-scm.ca/Weeds/images/SDknotweed_flowe... dnr.metrokc.gov/.../photos/SwimBeach005.jpg

  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 share3.esd105.wednet.edu/.../Pictures/Conks.jpg jowra.com/photos/photos/grasshopper.jpg www.mccullagh.org/.../vulture-carass-gnawing.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.ux1.eiu.edu/~cfruf/images/bio3002/trophic... www.bbc.co.uk/.../science/images/bi01010.gif

  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

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