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
Two of a Kind (soundtrack) a 1983 video collection of the music videos from the "Two of a Kind" soundtrack by Olivia Newton-John. The video was released on VHS and LaserDisc by MCA Home Video. All videos of standard release are directed by Brian Grant except for "Take a Chance", which was directed by David Mallet. The song went to Number One In Luxembourg. Two of a Kind (soundtrack) Two of a Kind: Music from the Original Motion Picture Soundtrack is the soundtrack album of the film of the same name released in 1983 by MCA Records and features songs by film's star Olivia Newton-John,