The rh factor identifies the presence of the rhesus protein in blood. the rh factor can be represented by a + or – sign. it is important to know the rh factor because just like how the antigens on the blood must be compatible, the rhesus protein in blood must also be compatible. if a person has rh+ blood they can blood. answer c. rh+ or rh-

your spelling is a little off : ]

answer : haversian

[explanation: -(compact bone is organized as parallel columns, known as haversian systems, which run lengthwise down the axis of long bones. these columns are composed of lamellae, concentric rings of bone, surrounding a central channel, or haversian canal, that contains the nerves, blood vessels, and lymphatic system of the bone)]

voluntary muscles are controlled by the cerebellum.