According To definition of Lichens: Lichens are symbiotic associations of a fungus with the photosynthetic partner called as phycobiont such as green algae or cyanobacteria.gain, The two organisms live in close association with each other and both get benefit from this kind of association, this is called Symbiotic Association. By the way, Parasitic relation means living in or on another organism (host) and causing harm to it.
The White Nile (Arabic: Ø§ÙÙÙÙ Ø§ÙØ£Ø¨ÙØ¶ââ an-nÄ«l al-'abyaá¸) is a river in Africa, one of the two main tributaries of the Nile; the other is the Blue Nile. In the strict meaning, White Nile refers to the river formed at Lake Victoria, at the confluence of the Bahr al Jabal and Bahr el Ghazal Rivers.
The source of the White Nile is the Great Lakes area in Rwanda. The source of the Blue Nile is Lake Tana, Ethiopia in the Ethiopian hill-country. The White Nile flows from Rwanda, through Tanzania, Uganda, South Sudan and then Sudan. The Blue Nile flows from its source in Ethiopia into south eastern Sudan.he Nile runs through the countries of Egypt, Sudan, Ethiopia, Uganda, Zaire, Kenya, Eritrea, Tanzania, Rawanda, and Burundi. ONE of the countries the Nile river ran threw in ancient Egypt was Memphis.