Question

While walking along roadside, Sunil asks his father, a biology teacher, whether some small, green, non flowering, leafy and thalloid plants having little differentiation of body and growing along pavement are of any use to us.
a)to which group these plants belong?
b)how are they different from angiosperms?
c)how is the green cover formed by this plant useful to the environment?

Answer 1

a) Bryophyta

b) They are different from Angiosperms in having a partially parasitic sporophyte and lacks true vascular bundles.

c) The dense mat formed on ground prevents soil erosion.

They also evade rocks to initiate plant succession.