Final answer:
Blood filters have multiple functions including waste removal, filtration, and immune response.
Step-by-step explanation:
The functions of the blood filters include:
- Removing waste products and eliminating them in the urine through the kidneys.
- Filtering the blood to remove damaged or defective red blood cells through the liver.
- Filtering and storing blood, removing damaged red blood cells, and acting as a reservoir for immune factors through the spleen.
- Acting as sites for entrapment of microorganisms and helping maintain an environment free of microorganisms in the blood.