Not sure but probably cognitive it fits the best
Some good times to study include right after school, after some exercise, or right before bed (you think about it while you sleep)
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.
The last one because it is taking charge
When you exhale is when carbon dioxide is removed from the body. Hope this helps! :)
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