Orientation to light of juvenile and adult forms of melanic and albino populations of Biomphalaria glabrata(Say, 1818).
D000818:Animals; D001522:Behavior, Animal; D001700:Biomphalaria / Q000254:growth & development / Q000469:parasitology / Q000502:physiology*; D006790:Host-Parasite Interactions; D008027:Light; D009068:Movement; D009949:Orientation; D010858:Pigmentation; D012550:Schistosoma mansoni / Q000502:physiology