Anticlinal divisions in an organ cause its growth in

Diffused porous woods are characteristic of plants growing in

Root apical meristem is derived from the

Sclereids are commonly found in the

$I.$ fruits wall of nuts

$II.$ pulp of fruit like guava and pear

$III.$ seed coat of legumes

$IV.$ micropile of pea

Select the correct combination

Function of companion cells is