logo

CuriousTab

CuriousTab

Discussion


Home General Knowledge Biology Comments

  • Question
  • Most fish do not sink in water because of the presence of

    1. swim bladder
    2. air bladder
    3. air sacs
    4. air in spongy bones


  • Options
  • A. I and II are correct
  • B. II and III are correct
  • C. III and IV are correct
  • D. I, II, III and IV are correct

  • Correct Answer
  • I and II are correct 


  • Biology problems


    Search Results


    • 1. Mycobacterium leprae causes leprosy, Corynebacterium diphtheria causes diphtheria and Vibrio comma causes

    • Options
    • A. tetanus
    • B. influenza
    • C. cholera
    • D. typhoid
    • Discuss
    • 2. Oxygen in our blood is transported by a protein named

    • Options
    • A. haemoglobin
    • B. keratin
    • C. collagen
    • D. myoglobin
    • Discuss
    • 3. Potato is a modified form (outgrowth) of

    • Options
    • A. root
    • B. stem
    • C. fruit
    • D. leaf
    • Discuss
    • 4. Plants that grow under average temperature and moisture are called

    • Options
    • A. halophytes
    • B. hydrophytes
    • C. mesophytes
    • D. xerophytes
    • Discuss
    • 5. Poison glands of snakes are homologous to

    • Options
    • A. electric organs of fishes
    • B. stings of rays
    • C. sebaceous glands of mammals
    • D. salivary glands of vertebrates
    • Discuss
    • 6. Plants developing in dry conditions are

    • Options
    • A. xerophytes
    • B. mesophytes
    • C. lithophytes
    • D. hydrophytes
    • Discuss
    • 7. Plants growing on sand are called as

    • Options
    • A. chasmophytes
    • B. oxylophytes
    • C. lithophytes
    • D. psammophytes
    • Discuss
    • 8. Number of chromosomes in Down's syndrome is

    • Options
    • A. 46
    • B. 47
    • C. 48
    • D. 49
    • Discuss
    • 9. Photosynthesis takes place faster in

    • Options
    • A. yellow light
    • B. white light
    • C. red light
    • D. darkness
    • Discuss
    • 10. Placenta is the structure formed

    • Options
    • A. by the union of foetal and uterine tissue
    • B. by foetus only
    • C. by fusion of germ layers
    • D. None of these
    • Discuss


    Comments

    There are no comments.

Enter a new Comment