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 city is situated about 71 kilometres (44 mi) north of the state capital, Thiruvananthapuram. It is the headquarters of the Kollam district. Kollam is the fourth largest city in Kerala and is known for cashew processing and coir manufacturing.