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Functioning ecosystems and succession

Revise functioning ecosystems and succession for the QCAA Biology external assessment.

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    Functioning ecosystems and succession

    • Energy flow and transformation in ecosystemsRevision skill
    • Ecological efficiency and productivity calculationsRevision skill
    • Food chains, food webs and ecological pyramidsRevision skill
    • Water, carbon and nitrogen cyclesRevision skill
    • Predation, competition and symbiotic interactionsRevision skill
    • Ecological niches and competitive exclusionRevision skill
    • Keystone species and community structureRevision skill
    • Analysing interactions and species removal from ecological dataRevision skill
    • Human impacts on community structure and ecosystem functionRevision skill
    • Changes to ecosystem carrying capacityRevision skill
    • Primary and secondary ecological successionRevision skill
    • Pioneer species and colonisationRevision skill
    • Explaining successional changeRevision skill
    • Comparing ecosystems across space and timeRevision skill
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