Rheumatoid factor (RF) is a blood test that measures the amount of the RF antibody in the blood.
Weight ranges from about 7 to 12 kilograms (15 to 26 lb) in females, and from 9 to 18 kilograms (20 to 40 lb) in males.[4] Where does a serval live? The Serval lives in Africa.
Percheron horses grow to be somewhere between 15 and 19 hands high,  with the average being between 16-3 and 17-3 hands. The average  weight for a percheron is about 1,900 pâ¦ounds, but they have been  know to weigh up to 2,500 pounds.