A piece of wood having no vessels (trachea) must belong to
1. teak
2. mango
3. pine
4. palm
Class 11 pg 87
(c) Pine It is a gymnosperm. The plants belonging to this group do not have vessels instead, they have trachieds. Whereas teak, mango and palm are angiospermic trees. Angiospermic xylem contains vessels, tracheids, parenchyma and fibres.
