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Agenda 06/25/10 • Review Yesterday – Quiz Safety • Class Syllabus • Energy – Energy Models – Biomes Safety Quiz 1. If you have any questions, you should ask the 2. List 2 other safety rules Syllabus • Highlight Main points • Sign by Guardian Energy Models Type of Organism • Where does our energy come from? Beetle Spiders Ant Grass Bee • How do we get it? Fly Grass Leaper Dandelion Clover # 2 3 ~14 10 ~4 x10 = (40,000,000,000) 2 2 2 ~80 60 This is a …. • Producer: – – • 1st Order Consumer – Organisms within Energy Models? – • Organisms that make their own food. Plants, Autotrophs Organisms that eat (consume) their energy by eating producers Primary Consumers, 1o heterotroph, herbivores 2nd Order Consumer: – – Organisms that eat (consume) their energy by eating 1o consumers 2o heterotroph, carnivores Where energy comes from? All energy comes from the SUN Producers go through photosynthesis to change sun energy into energy they can use called GLUCOSE Consumers eat producers, get energy in form of GLUCOSE , which is broken down in respiration into a form that we can use. Energy Flow IS all the energy that plants make passed on to their consumers? – Only 10% – 90% used by organism (pump sap up tree, growth of leaves, etc..) This is true for all organisms! 3 Energy Models Ecological Pyramid: – Model that shows how energy flows in a straight line (what eats what) Food Chain: – See Above Food Web: – Model that shows all the energy flow within a ecosystem Biome Presentations • • Partners • Present Biome create a poster Words that must be used: – – – – – – Biosphere Biome Ecosystem Habitat (not in book!) Niche Examples • • • Producers 1st order 2nd order