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.
Serval is medium-sized cat which lives in the Central and South Africa. It prefers wetlands and grasslands, but since it is highly adaptable, it can be found in other types of ecosystems. Although servals are eliminated from certain parts of Africa due to hunting and habitat loss, they are not considered endangered animals because their number in the wild is still high and they form stable population.