You are presented with the question "What removes waste from the blood?" and the following answer choices: 
- Veins and arteries.
 - alleles
 - Leptospirosis
 - the spinal cord
 - Special disposal
 - an area swollen with pus
 - oxygen
 - organs of excretion

Now knowing that organs of excretion make up the excretory system and urinary system Excretory system removes waste and toxic substances from blood, choose the best answer.


 

        organs of excretion 