Which of the following exhibit the characteristics given below?
X - Form a green scum over wet soil
Y - Closer to bacteria
Z - Pigment 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 C Blue green algae The blue-green algae grow in the moist area and cover the surface of the wet soil forming a scum. They are prokaryotes which resemble the bacteria. They have the pigments called as phycocyanin which gives the bluish green color and masks the color of the pigment chlorophyll.