JAMB - Biology (2014 - No. 26)
Which of the following is a nitrogen-fixing blue-green algae of soil?
Rhizobium
Nitrosomonas
Clostridium
Anabaena
คำอธิบาย
Anabaena is a genus of filamentous cyanobacteria that exist as plankton. They are known for nitrogen-fixing abilities, and they form symbiotic relationships with certain plants.