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Diversity in Living Organisms Test - 27

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Diversity in Living Organisms Test - 27
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  • Question 1
    1 / -0
    Catadromous fishes migrate from:
    Solution
    A. Fishes that migrate from freshwater to freshwater are called potamodromous fishes.
    B. Fishes that migrate from fresh to marine water are called catadromous fishes.
    C. Fishes that migrate from marine to freshwater are called anadromous fishes.
    D. Fishes that migrate from marine to marine water are called oceanodromous fishes.
    So, the correct answer is option B.
  • Question 2
    1 / -0
    Potamodromous fishes migrate from
    Solution
    A. Fishes that migrate from freshwater to freshwater are called potamodromous fishes.
    B. Fishes that migrate from fresh to marine water are called catadromous fishes.
    C. Fishes that migrate from marine to fresh water are called anadromous fishes.
    D. Fishes that migrate from marine to marine water are called oceanodromous fishes.
    So, the correct answer is 'Fresh to fresh water'.
  • Question 3
    1 / -0

    Out of the four animals (a,b,c,d) select the animals with common characteristics

    Solution
    Option 'd' is correct
    c and d have a true coelom because this 
    body is lined by mesodum. Animals Possessing 
    coelom are known as coelomales. cephalopoda
    and Aracheda have a true coelom because  
    mesoderm is present.

  • Question 4
    1 / -0
    Members of phylum Platyhelminthes are generally called:
    Solution
    Members of the phylum Platyhelminthes are also called flatworms because they have dorsoventrally flattened bodies. They seem like strips. Flatworms have unsegmented bodies.
    So, the correct answer is option A.
  • Question 5
    1 / -0
    Which of the following is a flying fish?
    Solution
    A. Torpedo is known as the electric ray as it can produce electrical shocks.
    B. Scoliodon is known as the dogfish.
    C. Anabas is known as climbing perch.
    D. Exocoetus is known as flying fish. It has wings modified as fins, but they are not meant for flying. Instead, wings help them in swimming faster than other fish.
    So, the correct answer is option D.
  • Question 6
    1 / -0
    Oceanodromous fishes migrate from
    Solution
    A. Fishes that migrate from freshwater to freshwater are called potamodromous fishes.
    B. Fishes that migrate from fresh to marine water are called catadromous fishes.
    C. Fishes that migrate from marine to fresh water are called anadromous fishes.
    D. Fishes that migrate from marine to marine water are called oceanodromous fishes.
    So, the correct answer is 'Marine to marine water'.
  • Question 7
    1 / -0
    Which among the following is a scale-less fish?
    Solution
    Scales are the projections on the surface of the skin of an animal's body and are dermal in origin. Generally all fishes have scales for protection with some exceptions.
    A. Scoliodon is known as the dog fish because it has a great sense of smell.
    B. Remora, also known as sucker fish, is a ray finned fish.
    C. Catfish is the fish that has long whiskers and thus, their mouth resembles the mouth of a cat. These fishes do not have scales and instead of scales, thick mucous layer plays the role of protection.
    D. Labeo, known as the carp fish, is found in clear and sluggish streams and rivers.
    So, the correct answer is 'Catfish'.
  • Question 8
    1 / -0
    Which is not included under schizocoelomata
    Solution
    Option 'c' is correct
    Nematoda is not included under schizocoelomata
    because schizocoelomata are invertebrate animals
    that possess a schizowd, a coelcm formed
    through we spilling of to mesoduryal mass,
    the meddle germ layers is embryonic development
    It is found is Annelida, Athropoda and
    Mollusca whenever nematode is not consider 
    to be a three coelom as they are not lined by
    a tissue. 

  • Question 9
    1 / -0
    Dorsal and ventral fins of Anabas have _________________.
    Solution
    In Anabas the anterior portion of dorsal and ventral fin have stiff rays and in the posterior region of fin contains soft rays.
    So, the correct option is C.  
  • Question 10
    1 / -0
    Which of the following is viviparous?
    Solution
    A. Bony fishes are oviparous as they lay eggs.
    B. Majority of the sharks give birth to the live young ones directly. So, they are viviparous animals. 
    C. Lung fishes are oviparous as they lay eggs.
    D. Frogs are oviparous as they lay eggs.
    So, the correct answer is option B. 
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