Gymnosperm wood is known as _______________

(a)

non porous wood

(b)

hard wood

(c)

porous wood

(d)

sap wood

Identify the character which is found in Autumn wood.

(a)

produces large number of xylem elements.

(b)

vessels have wide lumen

(c)

wood is darker in colour

(d)

cambium is very active

Canada balsam is made from __________

(a)

gum

(b)

tannin

(c)

latex

(d)

resin

Choose the non living cells.
(i) phellem
(ii) phellogen
(iii) phloem 
(iv) xylem vessel

(a)

i and ii

(b)

ii and iv

(c)

all the four

(d)

i and iv

____________ is a fossil resin.

(a)

Gum Arabic

(b)

Amber

(c)

Turpentine

(d)

Latex