Which of the following statements is false?

  • A
    Pap smear is a histological test.
  • B
    Blood and urine tests are used in laboratory diagnosis.
  • C
    $C.T.$ scan uses sound waves.
  • D
    $MRI$ uses non-ionizing radiation.

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State whether true or false :
$(1)$ Gastrointestinal tract,kidney and heart also produce hormones.
$(2)$ Pars distalis produces six trophic hormones.
$(3)$ $B$-lymphocytes provide cell-mediated immunity.
$(4)$ Insulin resistance results in a disease called diabetes mellitus.

Which one of the following is a mental disability?

What does the part labeled '$A$' in the given figure represent?

Match the disease in column $I$ with the appropriate items (pathogen/prevention/treatment) in column $II$.
Column-$I$ Column-$II$
$(A)$ Amoebiasis $(i)$ Treponema pallidum
$(B)$ Diphtheria $(ii)$ Use only sterilized food and water
$(C)$ Cholera $(iii)$ $DPT$ Vaccine
$(D)$ Syphilis $(iv)$ Use oral rehydration therapy

Which types of narcotic substances can be obtained from the parts of the leaf or flower shown in the figure?

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