Answer:
The answer is D.
Explanation:
Cellular respiration requires glucose and oxygen to form carbon dioxide and water.
Equation:
Glucose + Oxygen → Carbon dioxide + Water
C6H12O6 + 6O2 → 6CO2 + 6H20
The sympathetic nervous system.
This is a part of the nervous that operates involuntarily (you can’t control it) and functions to “turn you on” as part of the fight or flight response.
The parasympathetic is the other big involuntary part that mostly does the opposite functions.
It’s Microgravity it says it on NASA‘s website