blood is classified as
Submit. Â· just now. Report Abuse. Blood is classified into the following types based on the type of antigens present on them and they are; A, B, AB, O and K +ve and-ve is called as Rhesus factor and it comes from Rhesus monkey. Apart from A, B, AB and O, K is a very rare kind of blood group.Watcher Â· 9 years ago. Thumbs up.ubmit. Â· just now. Report Abuse. Blood is classified into the following types based on the type of antigens present on them and they are; A, B, AB, O and K +ve and-ve is called as Rhesus factor and it comes from Rhesus monkey. Apart from A, B, AB and O, K is a very rare kind of blood group.