Kingdom Monera Blue Green Algae

The cyanobacteria are also referred to as:

1. Protists

2. golden algae

3. Slime molds

4. Blue-green algae

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.

Which of the following organisms cannot fix nitrogen?

A.	Azotobacter	B.	Oscillatoria
C.	Anabaena	D.	Volvox
E.	Nostoc

Choose the correct answer from the options given below:

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