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.
It takes 1.5 hours to reach Kasauli. The distance of this route is 55 Km. Kalka to Kasauli by train: â Kalka is the nearest broad gauge railways station for Kasauli. Shortest road distance between Kalka to Kasauli is 20 km. It takes 40 minutes to reach to Kasauli from Kalka railway station. However, a Narrow gauge railway station of the heritage railway line between Kalka-to-Shimla is situated at Dharampur. It is 11 Kms away from Kasauli. Travellers canât reach directly to Kasauli from Kalka by train.