Taxis response is to move towards or away from the stimulus. If the organism moves towards the stimulus the taxis is positive, while if it moves away the taxis is negative. For example, flagellate protozoans of the genus "Euglena" move towards a light source. This reaction or behaviour is called "positive phototaxis", since phototaxis refers to a response to light and the organism is moving towards the stimulus. Many types of taxis have been identified, including: Depending on the type of sensory organs present, a taxis can be classified as a "klinotaxis", where an organism continuously samples the environment to determine
Taxis in India Taxis in India Cars such as Toyota Etios, Maruti Omni, Mahindra Logan, Tata Indica and Tata Indigo are fairly popular among taxicab operators. The livery of the taxicabs in India varies from state to state. In Delhi and Maharashtra, most taxicabs have yellow-black livery while in West Bengal, taxis have yellow livery. Private taxicab operators are not required to have a specific livery. However, they are required by law to be registered as commercial vehicles. According to Government of India regulations, all taxicabs are required to have a fare-meter installed. However, enforcement by authorities is lax and many cabs operate