Biology [1 Mark Question Answer]

The sweat glands of skin remove salt, water and traces of urea.

Bile pigments are broken down in the liver and excreted with the bile into the small intestine.

The Henle's loop absorbs a large amount of water and sodium ions during urine formation.

Urine is expelled from the bladder as a result of the simultaneous contraction of the bladder sphincter.

The collecting tubules fuse to form common ducts which release the urine into the renal pelvis and then into the ureter.

The renal vein carries the deoxygenated blood but free of toxic substances from the kidney to the heart.

Ureter