You are presented with the question "What are organs of excretion?" and the following answer choices: 
- kalenchoes
 - Malpighian tubes
 - solid, liquid, gas
 - ankles
 - rocks
 - tibias
 - the body's largest organ
 - Veins and arteries.

Now knowing that organs of excretion make up the excretory system and excretory system is composed of a dorsal excretory gland and a pair of Malpighian tubules, choose the best answer.


 

  Malpighian tubes       