Cockroaches are

  1. Vector for bacterial disease
  2. Of no economic importance
  3. Bisexual
  4. More than one option is correct
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Vestibulum is a part of

  1. Genital chamber of female cockroach
  2. Genital pouch of female cockroach
  3. Both a and b
  4. Rudimentary part of female circulatory system in cockroach
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Assertion  :      The development in cockroach is heterometabolous metamorphosis.

Reason     :      Young ones resemble the adults in all characters.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
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Assertion    :       Haemoglobin is said to be a conjugated protein.

Reason      :       It is composed of a protein called haem and a non protein iron porphyrin complex called globin.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
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Assertion   :       Serum can not be coagulated.

Reason      :       Serum lacks the protein fibrinogen.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
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Assertion   :       Thrombin is necessary to initiate blood coagulation.

Reason      :       Thrombin helps in the formation of thromboplastins.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
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Assertion    :       Muscle fibres are said to be contractile in nature.

 Reason      :       Cells of muscle tissues can shorten forcefully and again return to the relaxed state.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
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Assertion   :       Blood can be coagulated by adding oxalate (Sodium or Potassium Oxalate) to it.

Reason      :       Oxalate depresses the action of anticoagulant present in the blood.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
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Assertion   :       Thigh muscles can get tired but not the muscles of ventricle of heart.

Reason      :       Muscles of thigh are voluntary whereas that of heart are involuntary muscles.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
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Assertion   :       Smooth muscle fibres do not appear to be striated.

Reason      :       This is due to regular alternate arrangement of thick and thin filaments is smooth muscle fibre.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
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