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Below are some useful videos and a knowledge organiser for revising the B4 biology topic on Bioenergetics.

Biology Knowledge Organiser B4 - EpidermalOrganising animals and plants Stomata, guard cells and transpiration Stomata must be open at least some of the time, to allow carbon dioxide to …

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ermis is a layer of plant cells that sit below the cuticle. This layers m. sunlight as possible as it comes through the upper surface. This is why they are stacked near the surface and ar-ranged …

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