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1. The body has different types of defences against pathogens. 1 antibodies 2 hairs in the nose 3 mucus 4 skin Which defences help to prevent pathogens reaching the alveol, when…

1. The body has different types of defences against pathogens. 1 antibodies 2 hairs in the nose 3 mucus 4 skin Which defences help to prevent pathogens reaching the alveol, when…
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1. The body has different types of defences against pathogens.

1 antibodies
2 hairs in the nose
3 mucus
4 skin
Which defences help to prevent pathogens reaching the alveol, when
breathing in?
A 1, 2, and 3
B 2, 3, and 4
C 2 and 3 only
D 2 only

asked
User Alexis Wilke
by
7.0k points

1 Answer

3 votes
2and3 only are the defense
answered
User GavinCattell
by
8.3k points
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