The butterfly is of great economic importance because

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Flame cells are the

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The most successful group of animals in terms of diversity of species is

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In which of the following organisms would glycogen be stored?

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In which of the following organism does a single cells performs all the function of movement, nutrition, growth , excretion, photosynthesis?

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Which of the following organs or cells components are common to both the sporophytes and the gametophytes of a fern?

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In which of the features do bryophytes differ from pteridophytes?

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Production of naked seeds is a distinctive feature of the group of plant called

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On what structure are the units of inheritance situated?

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The grand period of growth is represented by

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Which part of the curve represents the fastest rate of growth?

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The function of the part labelled 1 is to

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