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Mrrafil [7]
3 years ago
10

What thing in ourbody decides the entry of foreign particle

Biology
1 answer:
Pachacha [2.7K]3 years ago
8 0
Receptors on the plasma membrane either recognize a particle as acceptable or foreign.
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4 0
3 years ago
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Smooth muscle is found in the walls of hollow organs like your intestines and stomach. They work automatically without you being aware of them. Smooth muscles are involved in many 'housekeeping' functions of the body. The muscular walls of your intestines contract to push food through your body.

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