Blue- green algae is found in
Cycas
Pinus
Scales of Marchantia
Riccia
A.
Cycas
The coralloid roots of Cycas has an algal zone which consists of Blue- Green algae Anabaena cycadeal and Nostoc punctiforme.
In living beings ammonia is converted into urea through
ornithine cycle
citrulline cycle
fumarine cycle
arginine cycle
In gametophyte of fern
prothallus is independent from sporophyte
prothallus is attached with sporophyte
it is main plant body
a structure attached with rhizome
The lack of fruit formation in gymnosperm is due to
absence of fertilization
lack of seeds
naked ovule
sheding of immature seed