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Diversity in Living Organisms Test - 43

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Diversity in Living Organisms Test - 43
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  • Question 1
    1 / -0
    Which of the following can fly backwards?
    Solution
    A) Penguin is a flightless bird.
    B) Albatross flies in the forward direction.
    C) Hummingbird is the only bird that flies backward.
    D) Elephant bird is now extinct. It was a large flightless bird.
    So the correct answer is option C. 
  • Question 2
    1 / -0
    Only the upper jaw has horny beak in __________.
    Solution
    Tuataras (Sphenodon) have a single row of teeth on the lower jaw and a double row of teeth on the upper jaw, with the bottom row fitting between the two upper rows when the mouth is closed. Hence option A is correct.
  • Question 3
    1 / -0
    Alternate bands of black and yellow colour occur in ____________.
    Solution
    Answer is option C i.e. "Krait"
    The krait is easily identified by its alternate black and yellow crossbands. Kraits are venomous snakes. They use their venom to paralyze prey.
  • Question 4
    1 / -0
    Which of the following birds has teeth?
    Solution
    A) Pelican does not have teeth.
    B) Ostrich does not have teeth.
    C) Albatross does not have teeth.
    D) Archaeopteryx is the connecting link between reptiles and birds. So, it had certain reptilian features like teeth and a long tail in addition to avian features like feathers and hollow bones.
    So the correct answer is 'Archaeopteryx'.
  • Question 5
    1 / -0
    Animals in which digits are both webbed and clawed __________.
    Solution
    Answer is option D 
    Frogs don't have claws,they carry scales at the tips of feet.
    crocodile and terrapins both are living in aquatic habitats so for swimming they need webbed feet.
    These organism are aquatic but for breeding purpose they need to come over land.for laying eggs they make hole in ground.Their claws help them to dig out a nest.They lay their eggs in nest and refill it with soil.

  • Question 6
    1 / -0
    Pneumatic skeleton is found in:
    Solution
    A) Amphibians (frogs) do not have pneumatic bones as they do not fly. The pneumatic skeleton consists of hollow bones which help in flight.
    B) Reptiles (wall lizards) do not have pneumatic bones as they do not fly. 
    C) Birds (pigeons) have pneumatic bones as they do fly. The pneumatic skeleton consists of hollow bones which help in flight.
    D) Mammals (whales) do not have pneumatic bones.
    So the correct answer is 'Birds/ pigeon'.
  • Question 7
    1 / -0
    Large unequal teeth not used for mastication occur in __________.
    Solution
    • Answer is option B.
    • Crocodiles have approximately 64 teeth in their mouth.
    • but all theeth are unequal in shape and size this difference in tooth pattern make them unable to masticate there food.
    • This teeth help them to bite with high intensity to kill there prey.
    • They make huge pieces of flesh from the body of prey and engulf as it is.
    • They have very strong digestive juices which could digest almost every part of body of prey.

  • Question 8
    1 / -0
    The fastest flying bird is
    Solution
    A) Albatrosses can fly upto 100km/h.
    B) Macropodus is a type of fish.
    C) Psittacula (parrot) can fly upto 95km/h.
    D) The Peregrine falcon is the fastest flying bird with a maximum speed of 390 km/h.
    So the correct answer is 'Falcon'.
  • Question 9
    1 / -0
    Birds do not possess
    Solution
    A) Birds do not have teeth.
    B) Birds do not have a urinary bladder. In fact, they do not urinate. They pass out their excretory matter as uric acid through their cloaca.
    C) Birds do not have a gall bladder.
    D) Birds do not have a urinary bladder, gall bladder or teeth.
    So the correct answer is 'All of the above'.
  • Question 10
    1 / -0
    A bird with movable upper jaw is
    Solution
    A) Animals which must exert powerful bite forces, such as crocodiles and vultures, often have rigid skulls with immovable maxillae (upper jaw) for maximum strength.
    B) Animals which swallow large prey whole, like snakes and animals which grip awkwardly shaped food items (parrots eating nuts), have movable upper jaws.
    C) Sparrows do not have a movable upper jaw as they eat small seeds and do not need a movable upper jaw.
    D) Pigeons do not have movable upper jaws.
    So the correct answer is 'Parrot'.
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