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.
1 The serval is a slender cat with a long neck, small head, and large, slightly cupped ears. The adult is 80 to 100 centimetres (32 to 40 inches) long, the tail accounting for an additional 20â30 cm. 2  The female serval normally bears a litter of two to four kittens; the gestation period has been given as 68 to 74 days.