What brings about increase in length and girth of the plant body?
Meristematic tissues
Permanent tissues
Complex tissues
None of these
The body of an adult human being contains about ____________________ litres of blood.
5 litres
7 litres
6 litres
The entire surface of plants has an outer covering called
Epidermis
Dermis
Protective
Vascular
The cells of ___________ tissue possess the power of cell division.
Meristematic tissue
Permanent tissue
Complex tissue
____________ helps in storage of starch and other materials.
Tracheids
Xylem
Xylem parenchyma
Xylem and phloem are the _____________ in the plant body.
Conducting tissue
Simple tissue
_______________ is composed of collagen fibres.
Epithelial tissue
Muscular tissue
Connective tissue
_________ helps in the exchange of gases.
The walls of Sclerenchyma cells are thick due to the presence of ___________________.
Fibres
Stone cells
Lignin
none of these