Blood enters the kidneys via .​

the renal arteries: renal arteries are the route of blood

Explanation:

renal arteries are the route by which blood enters the kidney

Blood flows into your kidney through the renal artery.

Explanation:

This large blood vessel branches into smaller and smaller blood vessels until the blood reaches the nephrons. In the nephron, your blood is filtered by the tiny blood vessels of the glomeruli and then flows out of your kidney through the renal vein.

the diploid number of chromosomes is sometimes represented by the symbol 2n. for the fruit fly, the diploid number is 8, which can be written as 2n = 8, where n represents twice the number of chromosomes in a sperm or egg cell.