A molted external skeleton.
Aldosterone increases the reabsorption of sodium ions bringing more back into the blood.
<span>This is the main mineralocorticoid hormone of the adrenal gland. The function of the aldosterone is in the homeostatic regulation of blood pressure, plasma sodium (reabsorption) and potassium levels (excretion).</span>
Extinction DIF; Having no more existing or living members
