Which of the following is formed immediately after the first product of photosynthesis?

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The respiratory organ in the land snail is the

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The gill rakers of fishes take part in

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The respiratory organ in the land snail is the

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The function of maxillipeds in crayfish is to aid

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In the earthworm, the cocoon is secreted by the

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One of the features which adapts Paramecium to its environment is the possession of

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The annulus of fern sporangium helps in

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To facilitate gaseous exchange, breathing roots have

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Which of the following are differentiated into true roots, stems and leaves

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Sting cells are normally found in

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Which of the following are non-green plants?

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