Bast fibres are frequently found in

Identify from the following,a plant tissue in which lignin does not occur in the cell walls.

All the following statements regarding sieve tube elements are true except

Collenchyma is a type of mechanical tissue but it is not as efficient as sclerenchyma. However,it has certain advantages like

Sclereids are commonly found in the
$I.$ Fruit wall of nuts
$II.$ Pulp of fruits like guava and pear
$III.$ Seed coat of legumes
$IV.$ Micropyle of pea
Select the correct combination.

Sieve tubes are well-suited for the translocation of nutrients because: