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  1. The phenomenon of summer sleep by animals is called

  2. A.

     Hibernation

    B.

     Aestivation

    C.

     Laziness

    D.

     Lethargy

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  3. Animals who have constant body temperature are

  4. A.

     Homeothermic

    B.

     Hemothermic

    C.

     Hematology

    D.

     Histology

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  5. Which type of cell, skin is made up of:

  6. A.

     Epidermal cells

    B.

     Connective tissue

    C.

     Permanent tissues

    D.

     Parenchyma

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  7. Cold blooded animals are known as

  8. A.

     Homiotherms

    B.

     Eurytherms

    C.

     Endotherms

    D.

     Poikilotherms

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  9. Ginger is a stem and not a root because

  10. A.

     It stores food

    B.

     It lacks chlorophyll

    C.

     It has nodes and internodes

    D.

     None of the above

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  11. Which of the following plants produce only seeds but no fruit?

  12. A.

     Sugarcane

    B.

     Peanut

    C.

     Cycas

    D.

     Almond

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  13. Consider the following plant
    1. Guava
    2. Mint
    3. Sweet potato
    The roots of which of these plants bear adventitious buds that developed into new individuals under favourable conditions.

  14. A.

     1 and 2

    B.

     2 only

    C.

     3 only

    D.

     1, 2 and 3

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  15. Potato is a

  16. A.

     Root

    B.

     Stem

    C.

     Bud

    D.

     Fruit

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  17. The "eyes" of potato tubers are

  18. A.

     Shoot buds

    B.

     Flower buds

    C.

     Root buds

    D.

     Axillary buds

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  19. Which of the following is responsible for transport of food and other substances in plants?

  20. A.

     Xylem

    B.

     Phloem

    C.

     Chloroplast

    D.

     None of these

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