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 that will never say no to the passengers. However, Taxicabs in Kolkata rarely ply by the meter and refusals and overcharging are common Taxis face stiff competition from auto rickshaws, but in some cities, for example Mumbai, auto rickshaws are banned in the main city district, thus giving taxis a monopoly. In cities and localities where taxis are expensive or do not ply as per the government or municipal regulated fares, people use Share taxis. These are normal taxis which carry one or more passengers travelling to destinations either en route to the final destination, or nearby the final destination.