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Which of the following organisms cannot fix nitrogen?

Choose the correct answer from the options given below:

1.	B only	2.	E only
3.	A only	4.	D only

Subtopic: Kingdom Monera: Blue Green Algae |

66%

Level 2: 60%+

NEET - 2025

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Which of the following is incorrect about Cyanobacteria?

1. They are photoautotrophs.

2. They lack heterocysts.

3. They often form blooms in polluted water bodies.

4. They have chlorophyll similar to green plants.

Subtopic: Kingdom Monera: Blue Green Algae |

81%

Level 1: 80%+

NEET - 2020

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