A piece of wood having no vessels (trachea) must be belong to
(a) teak
(b) mango
(c) pine
(d) palm
Option (c) pine
Pine, It is a gymnosperm. The plants belonging to this group do not have vessels instead, they have tracheids. Whereas teak, mango and palm are angiospermic trees. Angiospermic xylem contains vessels, tracheids, parenchyma and fibres.