Biology 3a 2.0 / 5 based on 1 rating ? BiologyGCSEAQA Created by: Jess ChristianCreated on: 25-03-13 18:45 When a substance is absorbed against a concentration gradient. Active Transport 1 of 7 Projections inside the small intestine that increae surface area for diffusion. Villi 2 of 7 Carries water and minerals from the roots to the stem and leaves. Xylem Tubes 3 of 7 Loss of water in a plant caused by evaporation and diffusion. Transpiration 4 of 7 Involved in the exchnage of materials at the tissues. Capillaries 5 of 7 The maintenance of a constant internal environment. Homeostasis 6 of 7 Given to people with kidney failure to extend their life, where a machine does the job a the kidneys. Kidney Dialysis 7 of 7
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