The human blood is divided into__________ groups? A. Three groups B. Six groups C. Four groups D. Five groups 💾 Save the Page as PDF: 📥𝐃𝐨𝐰𝐧𝐥𝐨𝐚𝐝 𝐍𝐨𝐰! Related Read more articles Previous PostSevere deficiency of Vitamin D results in __________. Next PostThe gas used in a refrigerator to cool water is___________? If the aforementioned Answer is Wrong. Leave a Reply with an authentic source.Cancel reply