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Cyanobacteria are photosynthetic prokaryotes containing chlorophyll a. Their colonies are generally surrounded by a gelatinous sheath, and some forms, such as Nostoc and Anabaena, fix atmospheric nitrogen in heterocysts.
Ref: NCERT Class 11 Biology Chapter 2: Biological Classification Protista - Euglenoids Slime Moulds Protozoans
Cyanobacteria are photosynthetic prokaryotes containing chlorophyll a. Their colonies commonly possess a gelatinous sheath, and forms such as Nostoc and Anabaena may contain nitrogen-fixing heterocysts.
Ref: NCERT Class 11 Biology Chapter 2: Biological Classification Protista - Chrysophytes and Dinoflagellates
Cyanobacteria are photosynthetic prokaryotes containing chlorophyll a. Their colonies commonly have a gelatinous sheath, and some forms possess nitrogen-fixing heterocysts.
Ref: NCERT Class 11 Biology Chapter 2: Biological Classification Protista - Chrysophytes and Dinoflagellates
The organism is a cyanobacterium. Cyanobacterial colonies commonly possess a gelatinous sheath and may form blooms in polluted water. Some forms, such as Nostoc and Anabaena, fix atmospheric nitrogen in heterocysts.
Ref: NCERT Class 11 Biology Chapter 2: Biological Classification Bacteria - Structure and Economic Importance
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