<span>Once you make a career choice, it should never be changed.
-False
</span>
The correct answer is letter A. Pain receptor - tissue injury. Nociception refers to the processing of harmful stimuli in the nervous system. The nociceptors are also known as "Pain receptor" that responds only to tissue damages cause by either mechanical, thermal stimulation.
True, if we exercise we have energy
Food is pushed through the digestive tract by muscle contractions called
<span>peristalsis.</span>