Which of the following exhibit the characteristics given below? X Form a green scum over wet soil Y Closer to bacteria Z Pigments mask the chlorophyll
A
Lichens
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B
Volvox
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C
Blue green algae
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D
Spirogyra
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Solution
The correct option is B Blue green algae Blue-green algae are also called Cyanobacteria. They are mostly found in fresh water bodies and form a green scum over wet soil. They are photosynthetic bacteria. The pigment present in these organisms in phycocyanin that helps in photosynthesis. Thus the correct answer is option C.