<prompt> tafadhali geuza maudhui haya ya swahili kwenda kwa kiingereza.idadi ya makada wa makabila madogo imeongezeka kwa kiwango kikubwa, na wameshika nyadhifa za uongozi katika ngazi tofauti.  <response>: the number of cd markers has grown constantly and was expanded to other cell types. 