Turpentine oil is obtained from
Pinus
Cycas
Cedrus
Delbergia
A.
Pinus
Turpentine is a fluid obtained by the distillation of resin from Pinus pinaster trees.
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