Question
You are given an assortment of plants on your laboratory table. What characters will you look for in order to label a particular specimen as : (i) Angiosperm (ii) Moss (iii) Alga.
Solution
(i) Angiosperm:
(a) Presence of flowers, seeds covered seeds and fruits.
(b) Presence of root, stem and leaves.
(c) Presence of xylem vessels.
(ii) Moss:
(a) Absence of roots.
(b) Presence of rhizoids.
(c) Leaves one cell thick.
(d) Presence of green thallus.
(iii) Alga:
(a) Green in colour.
(b) Filamentous or single celled.
(c) Food stored as starch.
(d) Aquatic.
