The vascular cambium of dicot root originates from the 

The anatomy of spring wood shows some peculiar features. Identify the correct set of statements about spring wood.

(a) It is also called the early wood.

(b) In spring, cambium produces xylem elements with narrow vessels.

(c) It is lighter.

(d) The spring wood along with autumn wood shows alternate concentric rings forming annual rings.

(e) It has a lower density.

Choose the correct answer from the options given below:

Assertion $\left(\mathrm{A}\right):$ The peripheral region of the secondary xylem is lighter in colour and is known as the sapwood (alburnum).

Reason $\left(\mathrm{R}\right):$ It is involved in the conduction of water and minerals from root to leaf.

The correct answer is:

Match List - I with List - II.

Select the correct answer from the options given below.

Which of the following are the part of the Periderm?

I. Duramen

II. Phellogen

III. Phellem

IV. Phelloderm

V. Alburnum

The correct answer is

The trees growing in temperature regions show clear demarcation between spring wood and autumn wood. This is because

*Note- The incorrect answer was marked. It has been changed.