Aging versus growth.
D000375:Aging; D000818:Animals; D002490:Central Nervous System / Q000254:growth & development; D002591:Cetacea / Q000254:growth & development; D005399:Fishes / Q000254:growth & development; D006128:Growth; D006321:Heart / Q000254:growth & development; D006801:Humans; D007668:Kidney / Q000254:growth & development; D008136:Longevity; D008168:Lung / Q000254:growth & development; D009416:Nerve Regeneration; D012104:Reptiles / Q000254:growth & development