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Communities & Ecosystems IB Diploma Biology Stephen Taylor Photo: Wasp in Java, by Stephen Taylor ©Wasp in Java.

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Presentation on theme: "Communities & Ecosystems IB Diploma Biology Stephen Taylor Photo: Wasp in Java, by Stephen Taylor ©Wasp in Java."— Presentation transcript:

1 Communities & Ecosystems IB Diploma Biology Stephen Taylor Photo: Wasp in Java, by Stephen Taylor ©Wasp in Java

2 Assessment StatementsObj. 5.1.1Define species, habitat, population, community, ecosystem & ecology.1 5.1.2Distinguish between autotroph and heterotroph.2 5.1.3Distinguish between consumers, detritivores and saprotrophs.2 5.1.4 Describe what is meant by a food chain, giving three examples, each with at least four linkages. 2 5.1.5Describe what is meant by a food web.2 5.1.6Define trophic level.1 5.1.7Deduce the trophic level of an organism in a food chain & food web.3 5.1.8 Construct a food web containing up to 10 organisms, using appropriate information. 3 5.1.9State that sunlight is the initial energy source for almost all communities.1 5.1.10Explain the energy flow in a food chain.3 5.1.11State that energy transfers are never 100% efficient.1 5.1.12Explain reasons for the shape of a pyramid of energy.3 5.1.13 Explain that energy enters and leaves ecosystems, but nutrients must be recycled. 3 5.1.14State that saprotrophic bacteria and fungi (decomposers) recycle nutrients.1 Assessment statements from: Online IB Biology Subject GuideOnline IB Biology Subject GuideCommand terms: http://i-biology.net/ibdpbio/command-terms/http://i-biology.net/ibdpbio/command-terms/

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8 Food webs show all of the feeding relationships within a habitat. Read this research article and generate a food web.this research article The state of the oceans, part 2: Delving deeper into the sea's bounty. John Tibbetts This is a good thing.

9 Food webs show all of the feeding relationships within a habitat. Read this research article and generate a food web.this research article The state of the oceans, part 2: Delving deeper into the sea's bounty. John Tibbetts This is a good thing.

10 Food webs show all of the feeding relationships within a habitat.

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17 i-Biology.net This is a Creative Commons presentation. It may be linked and embedded but not sold or re-hosted. Please consider a donation to charity via Biology4Good. Click here for more information about Biology4Good charity donations. @IBiologyStephen

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