Which simple permanent tissue is formed of dead cells?
Collenchyma, is the simple permanent mechanical tissue, formed of living cells.
Sclerenchyma, is the simple permanent mechanical tissue, formed of dead cells.
Aerenchyma, is a type of parenchyma, simple permanent tissue, formed of living cells.
Xylem is a simple complex permanent tissue formed of the majority of dead cells.
So, the correct answer is ‘Sclerenchyma’.