Question

What is thallus organisation?

Answer 1

Thallus organization is observed in some organisms like algae, fungi, and other lower organisms. The thallus is an undifferentiated flat tissue that occurs as a filament. It can be a group of cells ranging from unicellular structures to complex unbranched tree-like filaments. The thallus is a simple structure that lacks stems, leaves, and other conducting tissues.

Figure : Thallus