Answer:Nucleotide
A nucleotide consists of a sugar molecule
<span>They are mechanoreceptors that detect pressure, and are found in the skin and also in joints and tendons. Naked nerve endings lie in the centre of the corpuscle surrounded by concentric layers of connective tissue separated by viscous gel.
Looks like an onion.
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The first and last sounds most reasonable, but I will go with the last one.
