PHYLOGENETIC DEVELOPMENT OF ADAPTIVE IMMUNITY.
D056704:Adaptive Immunity; D000818:Animals; D005075:Biological Evolution; D005399:Fishes; D006801:Humans; D007109:Immunity; D008221:Lymphoid Tissue; D010802:Phylogeny; D012106:Research; D013950:Thymus Gland
EVOLUTION; EXPERIMENTAL LAB STUDY; FISHES; IMMUNITY; LYMPHOID TISSUE; THYMUS GLAND