positive chemotaxis

What Is Chemotaxis And Phototaxis? Chemotaxis is movement toward high or low chemical concentrations, phototaxis is movement toward light, and geotaxis is movement in response to gravity. What is phototaxis and examples? Phototaxis is one of the different forms of taxis. … Examples of phototrophic organisms exhibiting phototaxis are the phytoflaggellates, e.g. Euglena, and photosynthetic