title: Visual pigments and vitamins A in the adult bullfrog.
mesh_terms: D000818:Animals; D001001:Anura; D008027:Light; D010857:Pigment Epithelium of Eye / Q000378:metabolism; D011892:Rana catesbeiana; D012168:Retinal Pigments / Q000378:metabolism*; D012243:Rhodopsin / Q000378:metabolism; D013696:Temperature; D013997:Time Factors; D014801:Vitamin A / Q000378:metabolism*
chemical_list: D012168:Retinal Pigments; D014801:Vitamin A; D012243:Rhodopsin