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  1. R

    Biology paper 11 gt

    Endothelium was excluded because it only helps in the flow of blood.. it doesn't help the artery in resisting high pressure... as in it doesn't prevent it from bursting
  2. R

    Biology paper 11 gt

    For the transpiration question, all of the options besides evaporation of water from air spaces were correct. So mass flow in xylem is correct. The least process affected was diffusion. The structure coded for by DNA was the primary structure, the sequence of amino acids in the polypeptides of...
  3. R

    Biology paper 11 gt

    The option about the goblet cells secreting enzymes was the correct answer as they secrete mucus not enzymes The layers that allowed the artery to resist changes in pressure were the elastic and muscle layer D was the answer as anything with smooth endothelium was incorrect as its function is...
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