Biology miscellaneous


  1. Which one of the following is correctly matched ?









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    When plants and animals die, they become food for decomposers like bacteria, fungi and earthworms. The dead things that are eaten by decomposers are called detritus which means “garbage”.

    Correct Option: B

    When plants and animals die, they become food for decomposers like bacteria, fungi and earthworms. The dead things that are eaten by decomposers are called detritus which means “garbage”.


  1. The plant that behaves as a root parasite is









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    Plants which either obtain readymade organic food prepared by other plants or absorb water and minerals from other plants to prepare their own organic food are called parasitic plants. Cuscuta (Doddar) is a total stem parasite.


    Correct Option: C

    Plants which either obtain readymade organic food prepared by other plants or absorb water and minerals from other plants to prepare their own organic food are called parasitic plants. Cuscuta (Doddar) is a total stem parasite.




  1. Name the tiny pores present on the surface of leaves in plants.









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    Stomata are pores in the surface of the leaf. The pore is surrounded by two guard cells. When these two guard cells take up water, they bend and open up the pore between them.

    Correct Option: B

    Stomata are pores in the surface of the leaf. The pore is surrounded by two guard cells. When these two guard cells take up water, they bend and open up the pore between them.


  1. Which of the following three R’s are regarded as environment friendly ?









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    The 3 R’s of eco-friendly living are: Reduce, Reuse and Recycle. They all help to cut down on the amount of waste we throw away. They conserve natural resources, landfill space and energy.

    Correct Option: D

    The 3 R’s of eco-friendly living are: Reduce, Reuse and Recycle. They all help to cut down on the amount of waste we throw away. They conserve natural resources, landfill space and energy.



  1. Process through which plants reproduce









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    Pollination is the process by which pollen is transferred from the anther (male part) to the stigma (female part) of the plant, thereby enabling fertilization and reproduction. This takes place in the angiosperms, the flower bearing plants.

    Correct Option: A

    Pollination is the process by which pollen is transferred from the anther (male part) to the stigma (female part) of the plant, thereby enabling fertilization and reproduction. This takes place in the angiosperms, the flower bearing plants.