The nose senses what?
In: Biology
The nose senses physical particles (called molecules) that came from the thing you’re smelling and are now floating in the air you breathe in. Inside your nose there are thousands of receptors, each with the specific shape to allow binding to a particular type of molecule. If one of those floats in and binds to the receptor, the receptor “activates” and sends a signal to the brain, meaning you “smell the smell”.
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