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Questions  

Identify the organisms that play a great role in recycling of nutrients like nitrogen, phosphorous, iron and sulphur.

a
Cyanobacteria
b
Dinoflagellates
c
Parasitic bacteria
d
Chemosynthetic autotrophic bacteria

detailed solution

Correct option is D

Chemosynthetic autotrophic bacteria oxidise various inorganic substances such as nitrates, nitrites and ammonia and use the released energy for their ATP production. They play a great role in recycling nutrients like nitrogen, phosphorous, iron and sulphur.

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Read the following statements and identify the organisms.
(a) They have chlorophyll a similar to green plants.
(b) They often form blooms in polluted water bodies.
(c) They can fix atmospheric nitrogen.


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