Respuesta :
The statement "although taste and olfactory receptors are constantly renewed, visual and auditory or hearing receptors are irreplaceable." is true.
Visual Receptors: Rods and cones are the two types of cells present in the retina of the eye. They work as visual receptors which establishes a synaptic network involving neurons which connects the receptors to brain and help us in visualizing. However loss of neurons in the retina because of any kind of physical or biological damage permanently cuts the connection of receptors with brain and it cannot be replaced naturally.
Hearing receptors: Inside the ears there is a small structure known as cochlea which contains the Organ of Corti which further contains the hair cells [sensory cells] working as hearing receptors but research till date concludes that mammalian cochlear hair cells do not regenerate, either spontaneously or after damage.
Taste receptors: The small little bumps present of our tongue are known as papillae which functions as taste receptors as they contain taste buds. Scientifically there taste buds die off and regenerate every few weeks.
Olfactory receptors: These receptors keep on replacing due to continuous differentiation of basal cells which develop and are capable of reestablishing the connection with Central nervous system.
Learn more about nervous system here,
brainly.com/question/13487019
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