Q. What is role of an acosystem ?

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Q. Organisms, obtain energy from sunlight and make organic matter from inorganic substance, known as

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Q. Why consumers cannot make their own food ?

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Q. Self nourishing organisms are known as

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Q. Macro-consumer organisms in a pond water:

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Q. Green plants which manufacture their own food is known as

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Q. Utilization, rearrangement and decomposition of complex organic matter, known as

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Q. 'Herbivores' are known as

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Q. 'Minute floating' plants are mainly

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Q. Which organism use organic compound for their food and energy?

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Q. In structure of an ecosystem, composition of biological communities include:

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Q. Algae, green plants and photosynthetic bacteria are:

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Q. Simple inorganic substances released into environment is reused by

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Q. What ensures long term survival of an ecosystem?

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Q. Function of an ecosystem means

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Q. Chemical energy that is stored in primary producers is in form of

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Q. 'Decomposers' are also known as

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Q. What are examples of consumers?

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Q. Secondary consumers in a pond feeds on

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Q. Herbivores, carnivores and omnivores are categorized into

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