Which is not a cyanobacterium

Name a cyanobacterium.

Name a Cyanobacterium

Which of the following is a cyanobacterium that can fix atmospheric nitrogen?

Which of the following is a cyanobacterium that can fix atmospheric nitrogen ? Azospirillum, Oscillatoria, Spirulina

What are biofertilizers? Discuss the role of symbiotic N_2 fixation by a bacterium and a cyanobacterium.

The correct statements are I. Plasmid is a small circular piece of DNA, located in the cytoplasm of many bacteria. II. Distilled water is usually free from bacteria. III. Red colour of red sea is due to the presence of a cyanobacterium Trichodesmium IV. Bacteria are eukaryotes.

Function of heterocysts in cyanobacterium

Function of heterocysts in cyanobacterium

Read the given statements about lichens and select the incorrect ones. (i) They represent an example of commensallism. (ii) Algal partner obtains water and mineral salts from the fungus and the fungal partner obtains food prepared by the aiga. (iii) These do not grow in polluted areas. (iv) The mycobiont is usually an Ascomycetes or a Basididiomycetes. (v) The phycobiont is mostly a green alga or a cyanobacterium. (vi) These constitute the pioneer community in case of hydrosere.