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  • Question

  • The phenomenon of summer sleep by animals is called


  • Options
  • A. hibernation
  • B. aestivation
  • C. laziness
  • D. lethargy

  • Correct Answer
  • aestivation 

    Explanation

    Aestivation is summer sleep. Many organisms like the snails do not find it comfortable in summer. They withdraw and lead a life with reduced BMR (basic Metabolic Rate) in a state of  dormancy.

    • Biology problems

    Search Results

    • 1. Name the blood cells in which nucleus is absent

    • Options
    • A. Lymphocytes
    • B. Blood Platelets
    • C. Monocytes
    • D. Eosinophils
      • Discuss
    • 2. The energy released by 1 gram of glucose is

    • Options
    • A. 6 kcal
    • B. 4 kcal
    • C. 5 kcal
    • D. 3kcal
      • Discuss
    • 3. 13 - Chambered heart occurs in

    • Options
    • A. Leech
    • B. Earthworm
    • C. Snail
    • D. Cockroach
      • Discuss
    • 4. Animal without red blood cells

    • Options
    • A. Frog
    • B. Earthworm
    • C. Snake
    • D. Peacock
      • Discuss
    • 5. Spermology is the study of

    • Options
    • A. Seed
    • B. Leaf
    • C. Fruit
    • D. Pollen grain
      • Discuss
    • 6. The corner of the cells of collenchyma tissue in plant are thickened due to deposition of _____

    • Options
    • A. Lignin and suberin
    • B. Suberin and cutin
    • C. Cellulose and pectin
    • D. Chitin and lignin
      • Discuss
    • 7. Bone deformities occur due to the excess intake of

    • Options
    • A. Phosphorus
    • B. Potassium
    • C. Fatty acid
    • D. Fluorine
      • Discuss
    • 8. The plant dye Henna imparts orangered colour to skin and hairs due to its reaction with which of the following?

    • Options
    • A. Protein and amino acids
    • B. Lipids
    • C. Carbohydrates
    • D. Amino acids
      • Discuss
    • 9. Number of eyes found in Earthworm..........

    • Options
    • A. One
    • B. Many
    • C. No eye
    • D. Two
      • Discuss
    • 10. The hormone that helps in Parthenocarpy

    • Options
    • A. Abscisic acid
    • B. Gibberellin
    • C. Ethylene
    • D. Cytokinin
      • Discuss

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