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The photograph shows a housefly - Edexcel - GCSE Biology - Question 1 - 2014 - Paper 1
Question 1
The photograph shows a housefly. (i) Houseflies can be the animal vector for the disease dysentery. Complete the sentence by putting a cross (☒) in the box next to ... show full transcript
Worked Solution & Example Answer:The photograph shows a housefly - Edexcel - GCSE Biology - Question 1 - 2014 - Paper 1
Step 2
Describe how a housefly can cause a person to become infected with dysentery
Answer
A housefly can become a vector for dysentery by carrying the protozoan that causes the disease. When a housefly lands on contaminated food or surfaces, it can transfer the pathogens to a person. This happens through the fly's mouthparts when it feeds or through its body when it comes into contact with food, ultimately resulting in infection.