B4 – revision clips.

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Presentation transcript:

B4 – revision clips

Describe collecting and counting methods small insects, e.g. ants Small mammal trap butterflies, etc Pooter small insects, e.g. spiders Pitfall trap voles, mice Net

Ecology https://www.youtube.com/watch?v=iTSiTY2TSw8 Describe the mark release recapture technique What assumptions must be made? https://www.youtube.com/watch?v=_yKtAHhTF50 What is zonation and why does it occur?

Definitions https://www.youtube.com/watch?v=GUY_-LK_lOc

What are the differences? Biodiversity?

Photosynthesis https://www.youtube.com/watch?v=pdgkuT12e14 Describe Priestley’s experiment https://www.youtube.com/watch?v=2KZb2_vcNTg Describe Van Helmont’s experiment 7.22 - https://www.youtube.com/watch?v=xEhvsXG8cNs What are the limiting factors?

Leaf adaptations Label the diagram https://www.youtube.com/watch?v=co0JdqUlycg Explain the adaptations of a leaf

Osmosis https://www.youtube.com/watch?v=IaZ8MtF3C6M Describe osmosis