Permanent tissues in a plant body are formed following division of cells in:
1. Primary meristems only
2. Secondary meristems only
3. Both primary and secondary meristems
4. Neither primary nor secondary meristems

In the primary stems and roots, the type of cells usually present in cortex, pith and medullary rays is:

The sieve tube elements and the companion cells are connected by:

Cells of this tissue are living and show angular wall thickening. They also provide mechanical support. The tissue is

In which of the following pairs of parts of a flowering plant is epidermis absent?

Consider the given two statements:

1. Both I and II are correct and II explains I
2. Both I and II are correct but II does not explain I
3. I is true but II is false
4. Both I and II are false

The meristem which occurs between mature tissues in a plant body is known as:

Identify the incorrect statement regarding the anatomy of flowering plants:
1. Plants have cells as the basic unit.
2. Different organs in plants show differences in their internal structure.
3. Within angiosperms, dicots and monocots are anatomically different.
4. Adaptations to diverse environments are seen in external structures only.

Regarding the guard cells:

Plant tissues are classified into two main groups, meristematic and permanent, mainly on the basis of:
1. their location
2. time of their origin during the plant life
3. capability of division
4. degree of differentiation