Final answer:
Vasoconstriction of the afferent arterioles would result in decreased blood flow to the glomerulus and decreased filtration.
Step-by-step explanation:
Vasoconstriction of the afferent arterioles leading to the glomerulus would result in decreased blood flow to the glomerulus. This would lead to a decrease in filtration in the glomerulus, reducing the amount of solute and water that is retained or discarded by the kidneys. Ultimately, this would affect the osmolarity of blood and the blood pressure of the body.