What are the charecteristic difference found in vascular tissu of gymnosperms and angiosperms?

3

(a)

What  are the plant whold show the folowing ?
(i)Radial vascular bundle
(ii)Ployarch xylem
(iii) well developed pith 

3

(a)

Point out  between dicot and monocot leaf of peepal (Ficus religiosa) and maize (Zea mays)

3

(a)

What is the difference between lenticels and stomata?

3

(a)

Epidermal cells are often modified to perform specialised functions in plants. Name some of them and functions they perform.

3

(a)

The following epidermal cells are found in plants
(i) Cuticle They reduce surface transpiration.
(ii) Stomata Exchange of gases and transpiration.
(iii) Stem hair For reducing temperature changes and rate of transpiration.
(iv) Glandular hair Various secretions.
(v) Prickles Protect from grazing animals.
(vi) Root hair Absorb water.