Casparian strips occur in?

1.	Epidermis	2.	Pericycle
3.	Cortex	4.	Endodermis

Read the different components from I to IV in the list given below and tell the correct order of the components with reference to their arrangement from the outer side to the inner side in a woody dicot stem.

The correct order is:

Vascular bundles in monocotyledons are considered closed because:

Age of a tree can be estimated by:

1. biomass

2. number of annual rings

3. diameter of its heartwood

4. its height and girth

Lenticels are involved in:

Interfascicular cambium develops from the cells of:

1. Xylem parenchyma

2. Endodermis

3. Pericycle

4. Medullary rays

Companion cells are closely associated with:

Closed vascular bundles lack:

1. Ground tissue

2. Conjuctive tissue

3. Cambium

4. Pith