Cork cambium is also called

1. Phellogen

2. Annular ring

3. Early wood

4. Late wood

Phellogen, phellem and phelloderm are collectively known as

Bark that is formed early in season is called __________ bark.

1. Hard

2. Soft

3. Turbid

4. Lenticels

Bark formed towards the end of the season is called ________ bark.

The exchange of gases between the outer atmosphere and internal tissue of stem is through ___________.

In dicot root the vascular cambium is completely _________ in origin.

Which one yields fibres?
1. Coconut
2. Oak
3. Teak
4. Sisso

Death of protoplasm is a pre-requisite for vital function like

Dicotyledonous leaf is also known as

The main parts of the lamina of the dorsiventaral leaf are

(1)epidermis

(2)mesophyll tissues

(3)vascular system

(4)All of the above