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What belongs in each mystery box?

Every mystery box holds the same value. Make the two sides balance.

3 × ? + 428Equal values make a level balance.

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ScienceAges 10-12Biology: cells
Question 1 of 4
Plant & animal cell structures

Which three structures are present in a typical palisade plant cell but ABSENT from a human cheek (animal) cell?

Compare plant and animal cell organelles, specialised cells, diffusion, osmosis and microscopy.

Nucleus · Cytoplasm · Membrane
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Apply the principle of moments (F₁d₁ = F₂d₂) to balance a uniform beam about a central pivot.

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