W is the point where blood filtration starts in a nephron which makes option A the most appropriate choice.
<h3>What is a Nephron?</h3>
This is defined as the microscopic structural and functional unit of the kidney.
The renal artery carries blood from your heart to your kidneys during which the process of blood filtration starts immediately.
Read more about Nephron here brainly.com/question/242658
well it increases the permeability of the capillaries to white blood cells and some proteins, to allow them to engage pathogens in the infected tissues... i hope this is what you were looking for
