Fill in the Blanks Wood textOnline version Complete a text by María Pilar 1 tunks horizontal very not Bark tree Lignin processed external dry rigid soft transparent bushes Cellulose raw Pith Wood is a vegetable material . It comes from the of trees and It's composed of : - fibres , like all vegetable matter - , which makes it and hard The parts of a trunk you see whe you make a cut : - , exterior layer : it protects the plant from attack - Cambium , a thin layer - Sapwood , not strong , used for woodwork that needs wood - Heartwood , hard and , extracted and for all types of woodworking - , the centre of the trunk , very weak , generally use d
New game