What makes cilia and sperm tails beat?
D002923:Cilia / Q000502:physiology* / Q000648:ultrastructure; D005260:Female; D006801:Humans; D007248:Infertility, Male / Q000473:pathology; D008297:Male; D013081:Sperm Motility; D013082:Sperm Tail / Q000502:physiology* / Q000648:ultrastructure; D013094:Spermatozoa / Q000502:physiology*; D013577:Syndrome