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Enzymes from _______ and _______ degrade the detritus into simple inorganic substances.
(a)bryophytes, pteridophytes
(b)fungi, bacteria
(c)virus, bacteriophage
(d)angiosperms, gymnosperms

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Important Questions on Organisms and Environment - I
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The ecological niche of an organism helps to understand:

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Which of the following is a man-made artificial ecosystem?

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In an ecosystem, there are more prey than predators. This relationship is represented by

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The pyramid of number and the pyramid of biomass represent

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Identify the diagram given below

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A food chain starts with the phenomenon of

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Which of the following has the greatest amount of energy?

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Which one of the following system constitutes the primary producers?
