Describe the excretory system of the rabbit with a labelled diagram.

1. 1 · Open in one line. The rabbit removes nitrogen waste, mainly urea, through a pair of kidneys and their ducts.
2. 2 · Draw and label. [Two kidneys with hilum, renal artery, renal vein, ureters, urinary bladder, urethra]
3. 3 · Kidneys. Bean-shaped and dark red, on either side of the backbone; cortex and medulla; many nephrons filter the blood.
4. 4 · Ducts. A ureter from each hilum → urinary bladder (stores urine) → urethra → outside.
5. 5 · Real life. Human kidneys work the same way; drinking enough water helps them clear urea.
6. 6 · Close in one line. So the kidneys keep the rabbit's blood clean and its water balanced.

Scoring tip: Draw the two kidneys with their notches facing inwards, and show the ureters entering the bladder from above.