Question

what are the advantages of dead tissue formed inplants

Answer 1

Here your answer friend
Dead tissue give mechanical support to the plants.
As plants do not have locomotion most of their cells are dead.
Hope this helps you friend
Thanks

Answer 2

✌Hey...
The advantages are ...
Dead tissue give mechanical support to the plants.
As plants do not have to do locomotion most of their cells are dead.

Now in detail
Dead cells in the plants though do not possess living features yet proves bit advantageous for the plants.

The dead cells provide mechanical strength to the parts of the plant.

Moreover, maintenance required for the dead cells are less but provides support to the whole of the living plant.