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3.1 Communicable diseases

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Question 89
F

A grower keeps the air in a greenhouse dry and still. Why does this reduce the spread of rose black spot between the plants?

[1]
A

The spores are spread by water and by wind, so both routes are reduced

B

The spores are spread by insects and by wind, so both routes are reduced

C

The spores need dry, still air to germinate, so fewer new spots form

D

The spores need warm, damp air to be killed, so fewer new spots form

Markscheme

3.1 Communicable diseases Questions

  1. GCSE
  2. /Biology
  3. /3.1 Communicable diseases

176 exam-style questions on AQA GCSE Biology 3.1 Communicable diseases, covering 3.1.1 Communicable (infectious) diseases, 3.1.2 Viral diseases, 3.1.3 Bacterial diseases, 3.1.4 Fungal diseases, 3.1.5 Protist diseases, 3.1.6 Human defence systems, 3.1.7 Vaccination, 3.1.8 Antibiotics and painkillers, and 3.1.9 Discovery and development of drugs. Each one has a worked solution and a mark scheme showing where the marks go.

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