Term Name CTO id ploidy morphology Cellular component size germ line nucleation process process comment lineage organism Organism Comment potentiality anatomy Cell surface protein Comments CD8-positive, alpha-beta immature T cell CL:0000811 diploid pleiomorphic <10.0 n/a 1 GO:2456 ; GO:0021700 mesoderm animal only Terminally differentiated circulatory system CD marker CD-8 Any additional comment about this term transfer cell CL:0000370 choroid plexus epithelial cell CL:0000706 phloem element CL:0000399 fiber tracheid CL:0000258 tracheid CL:0000331 sieve cell CL:0000294 sieve tube member CL:0000543