IB Biology (2009) - Topic 5.1 - Communities and Ecosystems PPT

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5.16 MB   |   25 pages

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**The preview file is a pdf version of all the slides for you to review before purchasing the real thing

This powerpoint presentation covers Topic 5.1 (Communities and Ecosystms) in the IB Biology curriculum. Each slide is labelled with the specific learning objective and animation/video links are provided in the slide notes.

The slides are formatted to print well for handouts or revision and I can provide a pdf version upon request.

As always, please let me know if you have any suggestions for improvements. These are always a work in progress!


**IB Biology Learning Objectives

5.1.1 – Define species, habitat, population , community, ecosystem and ecology

5.1.2 – Distinguish between autotroph and heterotroph

5.1.3 – Distinguish between consumers, detritivores and saprotrophs.

5.1.4 – Describe what is meant by a food chain, giving three examples each with at least three linkages (four organisms)

5.1.5 – Describe what is meant by a food web

5.1.6 – Define trophic level.

5.1.7 – Deduce the trophic level of organisms in a food chain and a food web

5.1.8 – Construct a food web containing up to 10 organisms, using appropriate information.

5.1.9 – State that light is the initial energy source for almost all communities.

5.1.10 – Explain the energy flow in a food chain. Energy losses between trophic levels include material not consumed or material not assimilated and heat loss through cell respiration.

5.1.12 – Explain reasons for the shape of pyramids of energy.

5.1.13 – Explain that energy enters and leaves ecosystems, but nutrients must be recycled.

5.1.14 – State that saprotrophic bacteria and fungi (decomposers) recycle nutrients.
Total Pages
25
Answer Key
N/A
Teaching Duration
2 hours

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IB Biology (2009) - Topic 5.1 - Communities and Ecosystems PPT
IB Biology (2009) - Topic 5.1 - Communities and Ecosystems PPT
IB Biology (2009) - Topic 5.1 - Communities and Ecosystems PPT
IB Biology (2009) - Topic 5.1 - Communities and Ecosystems PPT
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