Aim: How are food chains & food webs different?

Slides:

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Presentation transcript:

Aim: How are food chains & food webs different? DO NOW: Take a good look at this food web and write down two feeding relationships from interpreting it.

Food Chain Shows which organisms are eaten by other organisms The arrow means “ eaten by” Starts with a producer Continues with consumers (primary, secondary, tertiary etc.) Decomposers function at every level

Food Chain Image

Trophic Level Each step of a food chain 1st trophic level will be the producers present in the chain

Food Web A web of many food chains interconnected together Energy flows from producers to consumers Shows how some organisms eat only 1 food Shows how some organisms have more than 1 food choice Shows how changes in one population of organisms affects other organisms

Food Web Visual

Video http://studyjams.scholastic.com/studyjams/jams/science/ecosystems/food-chains.htm

Group Work Answering video questions

Individual Work Work on regents questions handout & turn in

Homework Work on castle learning questions