Q.

Statement A: Diatoms show both autotrophic and heterotrophic nutrition.

Statement B: Euglena shows predation in the absence of light and liberates oxygen in the presence of light

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a

Statement A is correct and B is incorrect.

b

Both A and B statements are correct.

c

Statement A is incorrect and statement B is correct.

d

Both A and B statements are incorrect.

answer is C.

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Detailed Solution

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Diaotms are exclusively autotrophic.

Euglena has pigments similar to higher plants and hence can carry out photosynthesis during the daytime and liberate oxygen. During nighttime or in the absence of light, it shows predation by taking in other smaller organisms by phagocytosis.

 

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