In the olden days, they were called corpuscles. The only distingushing mark was they were identified as red or white. Nowadays, they have a scientific name, like red corpuscles are now...
red blood cells contain haemoglobin which gives red colour to the RBC .hence it is called red blood cells where. heamoglobin is absent in WBC.
reticulocyte
False. White.
polycythemia