Question

which of the following receptors are humans known to have?
click or tap the appropriate places in the image.

receptor type	stimulus	sense(s)
photoreceptors	light	vision
mechanoreceptors	physical changes	touch, hearing, proprioception (body position), balance
thermoreceptors	moderate heat and cold	thermoreception (gradations of heat and cold)
pain receptors	injury, noxious chemicals, chemical and physical irritants	pain, itch
electroreceptors*	electrical fields (especially those generated by muscle contractions of other animals)	electrical sense
magnetoreceptors*	magnetic fields	magnetic sense

Explanation:

Humans have chemoreceptors (for taste, smell, body chemical levels), photoreceptors (vision), mechanoreceptors (touch, hearing, balance, body position), thermoreceptors (heat/cold gradations), and pain receptors (pain, itch). Electroreceptors and magnetoreceptors (marked with *) are not known to be present in humans.

Answer:

Chemoreceptors, Photoreceptors, Mechanoreceptors, Thermoreceptors, Pain receptors