Every organism, whether its body is unicellular or multicellular, is capable of performing all vital functions such as respiration, ingestion, excretion and reproduction.
The plant body is made up of different kinds of tissues.
Found in the vascular cambium of dicot trees just beneath the bark. They are responsible for the increase in diameter of the stem.
Cells are compact, plate-like with no inter-cellular spaces. It forms the outer layer of the skin and lines cavities and ducts.
Tissues and organs in a body must be supported and held in position. This function is performed by connective tissue, which binds organs and tissues together.
Muscles of the body are made up of elongated muscle cells also known as muscle fibre. The movement of the body is brought about by the contraction and relaxation of contractile protein present in muscle cells.