Nonadaptive tropisms and the evolution of behavior.
D000220:Adaptation, Biological; D000818:Animals; D001522:Behavior, Animal; D005075:Biological Evolution; D003386:Brachyura / Q000502:physiology; D003530:Cyprinidae / Q000502:physiology; D055590:Electromagnetic Phenomena; D005010:Ethology; D005824:Genetics, Behavioral; D007323:Instinct; D008027:Light; D009068:Movement; D009949:Orientation; D018521:Plant Physiological Phenomena; D012018:Reflex; D013045:Species Specificity