Answer:
. A. Look at the microscopic structure of a tumor. = Anatomy
B.Measuring respiratory rate during sleep.= Physiology
C. Measuring blood pressure during exercise. = Physiology
D. Observe a lesion to see if the border is irregular. = Anatomy
Explanation:
The somatic nervous system(SNS), autonomic nervous system (ANS), and entericnervous system (ENS). The portion of the peripheralnervous system consisting ofsomatic sensory (afferent) neurons and somatic motor (efferent) neurons.
Google said hydrogen so I'm guessing B. gases
I’m pretty sure it’s the first one