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.
Antelope - Morphology. 1  For example, a male common eland can measure 178 cm (70 in) at the shoulder and weigh almost 950 kg (2,090 lb), whereas an adult royal antelope may stand only 24 cm (9.4 in) at the shoulder and weigh a mere 1.5 kg (3.3 lb).