What is the sticky coating on the outside of cells that keep them joined together

The sticky layer surrounding the cell walls from bacteria is called  a capsule, the cell surface and sometimes helps to glue the cell to surfaces.

The answer is capsule

Tamarind can be grown on homesteads, plantations, and wasteland or as a forest tree. methods of propagating tamarind there are two methods of propagating tamarind trees: seed propagation and vegetative propagation. seed propagation: it involves the collection, preparation and direct planting of the seed.answer from google full credit to google.