Question

Examle of nitrigen fixation and non nitrogen fixation cynobacteria

Answer 1

Examples of symbiotic nitrogen-fixing bacteria include Rhizobium, which is associated with plants in the pea family, and various Azospirillum species, which are associated with cereal grasses.

Answer 2

Explanation:

Symbiotic Nitrogen Fixation

One example of this type of nitrogen fixation is the water fern Azolla's symbiosis with a cyanobacterium Anabaena azollae. Anabaena colonizes cavities formed at the base of Azolla fronds. There the cyanobacteria fix significant amounts of nitrogen in specialized cells called heterocysts.