chorionic villus sampling is removing a peice of the placenta.
amniocentesis is removing amniotic fluid.
Ultrasound is listening for a heartbeat.
and so on
That is true because the mucus will build up and not drain down the eustachian tube
Answer:
C. responds to damage
Explanation:
It is believed, according to the specificity theory that pain has it's own set of receptors and nerve endings that is assigned to perceive pain. There are specialised peripheral receptors that react to 'damage' caused by the specific pain. So, this theory of specificity is classified as pain and pain perception being it's own independent sense just like seeing, hearing and feeling and tasting etc.