Most common nitrogen fixing cyanobacteria of paddy fields is :-
Oscillatoria is a genus of filamentous cyanobacterium which is named after the oscillation in its movement. Filaments in the colonies can slide back and forth against each other until the whole mass is reoriented to its light source.
Kingdom protista includes :-
The term protista was coined by :-
The wall of Rhizopus hypha is composed of :-
Yeast and Penicillium/penicillin producing fungus are included under :-
The fungus that may cause disease in human beings is :-
Bryophytes are amphibians because
Pteridophytes differ from bryophytes in possessing :-
Azolla/Marsilea is a :-
Gymnosperms do not have :-
What is true in a scientific name ?
What is the exclusive marine phylum?
Which of the following is a monocot ?
Which among the following has specialised tissue for conduction of water ?
(i) Thallophyta (ii) Bryophyta (iii) Pteridophyta (iv) Gymnosperms
Organisms without nucleus and cell organelles belong to :
(i) Fungi (ii) Protista (iii) Cyanobacteria (iv) Archaebacteria
Cyanobacteria and archaebacteria belong to kingdom-Monera. Monerans are organisms without nucleus and cell organelles and are called prokaryotes.
Karl Von Linne was involved with which branch of science ?
The 'Origin of Species' is written by :
Stem of fern is generally :