I think it’s A or c but probably A
The correct answer is A only. The A arrow indicated the direction of a gradient of increasing solute concentration in the interstitial fluid surrounding a nephron. Nephron is the basic function of the kidney that is why it is important to indicate the direction of the concentration gradient in which high solute concentration may take place.
Answer:
Depressant drugs are very dangerous if taken with alcohol and some other drugs. Very large doses of depressants can stop breathing and cause death.
Explanation:
The brainstem consists of the medulla, midbrain, and pons.