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How can an aquarium become self-sustaini...

How can an aquarium become self-sustaining system by adding a few aquatic plants and animals?

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Aquatic plants performs photosynthesis. They are producers on which animals depend for their nutrition. Plants release oxygen during photosynthesis. Oxygen is utilised by animals in respiration and release carbon dioxide in the water. Carbon dioxide is aVailable to plants for photosynthesis. Thus, aquarium becomes self-sustaining system.
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Knowledge Check

  • The term 'systematics' refers to (A) identification and study of organ systems (B) identification and preservation of plants and animals (C) diversity of kinds of organisms and their relationship (D) study of habitats of organisms and their classification

    A
    identification and study of organ systems
    B
    identification and preservation of plants and animals
    C
    diversity of kinds of organisms and their relationship
    D
    study of habitats of organisms and their classification

  • How many animal species are likely to become extinct ?

    A
    3,50,000
    B
    35000
    C
    1700
    D
    3500

  • A : When unwanted substances are added into water they make water impure. R : The reason behind water pollution is accumulation of plants and animals.

    A
    Both A and R are true and R is correct explanation of A
    B
    Both A and R are true but R is not correct explanation of A
    C
    A is true but R is false.
    D
    A is false but R is true. (E) Both A and R are false.

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    Identify me : I am smallest cell without cell wall, can live without oxygen and infects the plants and animals.

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    The essential functions of roots are anchorage and absorption of water and minerals in the terrestrial plant. What functions are associated with the roots of aquatic plants ? How are roots of aquatic plants and terrestrial plants different?

    Apart from plants and animals, microbes form a permanent biotic component in an ecosystem. While plants have been referred to as autotrophs and animals as heterotrophs, what are microbes referred to as ? How do the microbes fulfil their energy requirements ?

    How can we improve the success rate of fertilisation during artificial insemination in animal husbandry programmes?

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