The number of neck canal cells in the archegonium of Cycas is ?
The dwarf shoots of Pinus wallichiana are ?
Species that occur in different geographical regions separated by special barrierare ?
Area within the centre of diversity protected from human interference.
Which is the age of ‘higher gymnosperms’?
The storage of energy at consumer’s level is ?
Ozone in the atmosphere absorbs ?
The taxa which is believed likely to join the endangered category in near future iscalled: ?
Total soluble salts in soil are measured by ?
Yeast is an important source of ?
Powdery mildews of crops are caused by ?
A fungus with hyphae containing nuclei from different genomes, the nuclei do notfuse but divide independently and simultaneously as new cells are formed is ?
The type of ovule in which micropyle and funicle lie in one line ?
Study of pollen grains in honey is known as ?
Sporopollinin is seen in ?