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-Bordogna-Valnigra by the family name "Tasso de Saxe-Coburgo e Bragança". Taxis-Bordogna-Valnigra Taxis-Bordogna-Valnigra is the name of the descendants of "Elisabeth von Taxis" († 1518) and her husband "Bonus von Bordogna". Elisabeth Taxis was a sister of the Brussels Postmaster General Johann Baptista of Taxis (1470–1541), the ancestor of the Princely House of Thurn and Taxis. The House of Taxis-Bordogna-Valnigra was first mentioned in documents in 1148 with Angelbertus de Fondra, and goes back to Bonazolus Fondra de Bordogna (c. 1330). Bonus von Bordogna worked with his in-laws in the Taxis family's postal system and took over the post office in Trento