-Suchismita,Subject Matter Expert at Edumarz
Solution: The division of plants which have the simplest form of organism is ‘Thallophyta’.
Thallophyta have primitive forms of roots, leaves, stems and branches. Which is the perfect feature for being a plant. These roots , leaves , stems and branches are not well defined.
The division Thallophyta is classified into two categories:
1) Algae- They are chlorophyll-bearing thalloid, autotrophic and largely autotrophic and largely aquatic (freshwater and marine water) plants. Example: Spirogyra.
2) Fungi-They are achlorophyllous i.e., and don’t contain chlorophyll (non-green) heterotrophic thallophytes.
The term thalloid means structure in the form of plates and resembles a structure of a tree.
The important feature of thallophytes –
1) They are aquatic — found in moist or wet places.
2) They are autotrophic, and the reserve food is generally Starch.
3) They consist of a cellulose in their cell wall around their cells.
4) Mechanical and conducting elements are absent in thallophyta.
5) They do not contain any specific characteristics of big plants.