1 The cell is the basic unit of all forms of life. However, there are several levels of cell organization within many multicellular organisms. Cells are arranged in hierarchical levels of organization.  The lowest form of organization is the cell followed by tissues, organs, and organ systems.
Distance between Kannur to Kottayam is 326 km by Road and 342 km by Rails. Aerial distance is 283 km.
The shortest distance between two stations is 250 metres (0.16 miles), between Leicester Square and Covent Garden on the Piccadilly line. Also if anyone wanted to know: The longest distance between two stations is 6.26 km (3.89 miles), between Chalfont & Latimer and Chesham on the Metropolitan line. Well I agree with you Kangkid.