Biology · A-Level · Edexcel · Edexcel A-level Biology B - 9BI0 · Specification point · 4.3 · Exchange and Transport
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4.3 Gas exchange
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i Understand how insects, fish and mammals are adapted for gas exchange. CORE PRACTICAL 7: Dissect an insect to show the structure of the gas exchange system, taking into account the safe and ethical use of organisms. ii Understand gas exchange in flowering plants, including the role of stomata, gas exchange surfaces in the leaf and lenticels. |