<prompt> Morula in RBC is seen inBabesiaEhrlichiaSpirocheteEntamoeba  <response>: Ehrlichia are small gram negative bacteria,obligate intracellular bacteria which have affinity towards bloodcells,In cytoplasm of infected phagocytic cells,they grow within phagosomes as mulberry like clusters called morulameaning mulberry.they are tick borne. Ref: ananthnarayan an panikers microbiology 10th edition 