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

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

Given the two facts above, answer the question "What removes waste from blood?" with the following options: 
- exhaling
 - Leptospirosis
 - hemmhorage
 - Acids
 - excretion
 - glucose
 - bacteria
 - respiration


 

     excretion    