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
Whatever Happened to the Likely Lads? and participated in a short UK tour as a result, but Rivers was not involved in these appearances. The song made the lower reaches of the UK Top 40 in 1973. Mike Hugg also wrote the theme tune to the spin-off 1976 feature film, entitled "Remember When". The complete first and second series of the 1970s show (including the Christmas special) are available in the UK on Region 2 DVD. Although "Whatever Happened to the Likely Lads?" was a continuation of the earlier series and featured many of the same characters, the style and format had changed. Unlike the original