Describe the body’s first lines of defence: (not including the immune system)
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Ответ:
physical and chemical.
Explanation:
The first line of defence includes
1. Physical eg: nails
2. chemical : that are always ready and prepared to defend the body from infection.
These include your skin, tears, mucus, cilia, stomach acid, urine flow,
friendly bacteria
Ответ:
s-s-sweetheart???
Explanation: