Any answer choices?? but mainly basics
Answer:
B. nociceptors
Explination
Nociceptor or "pain receptor" is a sensory neuron that responds to damaging or potentially damaging stimuli by sending “possible threat” signals to the spinal cord and the brain.
The answer should be D. Here are a few references I used.
Website with information: https://study.com/academy/lesson/myocardium-definition-function.html#/transcriptHeader
You can always ask Google, your best friend :)
A fetus because it has already developed far enough.
An infection from a bacteria or germ called H. pylori :)