A simple,automatic,inborn response to a sensory stimulus is called a(n)

A) neural network.
B) action potential.
C) neurotransmitter.
D) reflex.

A reflex is an automatic and involuntary response to a sensory stimulus that does not require conscious thought or awareness. Examples include the knee-jerk reflex, which occurs when the doctor taps the knee with a small hammer causing the leg to kick out, or the withdrawal reflex, which occurs when you touch something hot and quickly remove your hand without thinking. Neural networks, action potentials, and neurotransmitters are all important components of the nervous system, but they do not specifically refer to simple, automatic, inborn responses to sensory stimuli.