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Plant defences and the human immune system

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Question 6

Plants have evolved physical and chemical defence systems to protect themselves against pathogens and pests.

Draw one straight line from each plant defence to its correct primary function.

Plant defenceFunction
Waxy cuticle on leavesMimics larger animals to scare away pests
Acts as a physical barrier to prevent pathogen entry
Antibacterial chemicalsPoisons herbivores to deter grazing
Kills bacterial pathogens to prevent infection
Absorbs toxic substances from the soil
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Plant defences and the human immune system Questions

  1. GCSE
  2. /Biology
  3. /Plant defences and the human immune system