Biology (Combined Science) · IGCSE · Edexcel · Pearson Edexcel International GCSE Science (Double Award) — Biology (Modular) — 4XSD1 · Specification point · 3.20 · Structure and functions in living organisms: Part 2 · Excretion
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Flowering plants |
3.20 understand the origin of carbon dioxide and oxygen as waste products of metabolism and their loss from the stomata of a leaf |