Fact 1: Organs of excretion make up the excretory system.

Fact 2: Urinary system Excretory system removes waste and toxic substances from blood.

Given the two facts above, answer the question "What removes waste from the blood?" with the following options: 
- Veins and arteries.
 - alleles
 - Leptospirosis
 - the spinal cord
 - Special disposal
 - an area swollen with pus
 - oxygen
 - organs of excretion


 

        organs of excretion 