Question

Q.3) Answer the following
i) what is prothallus
ii) .... is the living member of psilopsida
iii) Dominent pigment of Rhodophyceae is
iv) Gymmacups are present on
of Marchantia
surface of Thallus
v) Dominant generation in Bryophytes is
vi) Advanced class of pterridophytes is
vii) Frond is present in
viii) Mycorrhizal roots are present in
ix) Monoxylic wood is present in
x) Vescular cryptogames occupy the position in between
&​

Answer 1

Answer:

A prothallus, or prothallium, is usually the gametophyte stage in the life of a fern or other pteridophyte. Occasionally the term is also used to describe the young gametophyte of a liverwort or peat moss as well. The prothallus develops from a germinating spore.