Question

The commercial cork is also made
from the
of trees such as
Quercus suber
(a) cortex
(b) Bark
(c) cork cambium
(d) none of the above​

Answer 1

Answer:

.......phylloclades

Some plants of arid regions modify their stems into flattened {Opuntia), or fleshy cylindrical {Euphorbia) structures. These modified stems of indefinite growth are called phylloclades. They contain chlorophyll and carry out photosynthesis.

Answer 2

Answer:

Cork is an impermeable buoyant material, the phellem layer of bark tissue that is harvested for commercial use primarily from Quercus suber (the cork oak), which is endemic to southwest Europe and northwest Africa. Cork is composed of suberin, a hydrophobic substance.