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GCSE Biology - Surface Area to Volume Ratio (2026/27 exams)
⭐️ Check out our website https://www.cognito.org/ ⭐️ *** WHAT'S COVERED *** 1. The concept of surface area to volume ratio. 2. The importance of SA:V ratio for the exchange of substances via diffusion in organisms. * How single-celled organisms exchange substances. * Why large multicellular organisms need specialised systems. 3. How ...
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