(a) _________________ in human blood is a single cell. Share with your friends Share 2 Preeti Chaukiyal answered this All cells in blood i.e White blood cells, Red blood cells and Platelets are single cells. 2 View Full Answer Prasad answered this Red Blood CellsWhite Blood Cells -1 Snigdha answered this wbc -1 Avishi Bafna answered this WBC 1