Solarisation is
formation of chlorophyll
destruction of chlorophyll
utilisation of sunlight
effects of solar light
A fern prothallus is bisexual. If fertilisation takes place between their gametes than it is known as
cross- fertilisation
self- fertilisation
isogamous
viviparous
B.
self- fertilisation
Self- fertilisation is the fusion of male and female gametes produced by the same individual.
Cross- fertilisation is the fertilisation of male and female gametes produced by different individuals.
Isogamous is the fusion of isogametes.
Viviparous is a term used for organisms which give birth to young ones.
Which of the following is not the feature of gymnosperms?
parallel venation
perennial plants
distinct branches (long and short branches)
xylem with vessels
Edible part in 'sorosis', a composite fruit, is
cotyledons
endosperm
perianth and peduncle
fleshy thalamus
Most primitive member, in which roots are not present, is
Psilotum
Rhynia
Lycopodium
Selaginella