Explain the life process in briefly with the help. of example​

gag reflex, poor dentition, gum retraction

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the answer u all are looking for is 4000000000000000000000 million years.

loss of sensation to pressure and touch

the dorsal column–medial lemniscus pathway (dcml) (also known as the posterior column-medial lemniscus pathway (pcml)) is a sensory pathway of the central nervous system that conveys sensations of fine touch, vibration, two-point discrimination, and proprioception (position) from the skin and joints.