Question
Chemicals, which can induce cancer are called
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$R$ : Echinoderms have secondarily adapted to radial symmetry.
$I.$ Stretch receptors on the wall of urinary bladder send signal to the $CNS$
$II.$ The bladder fills with urine and becomes distended
$III.$ Micturition
$IV.$ $CNS$ passes on motor messenger to initiate the contraction smooth muscles of bladder and simultaneous relaxation of urethral sphincter
The correct order of steps for urination is
| Column $I$ | Column $II$ |
| $(A)$ Limbless reptile | $(i)$ Lamprey |
| $ (B)$ Jawless vertebrate | $(ii)$ Salamander |
| $ (C)$ Amphibian | $(iii)$ Snake |
| $(D)$ Cartilaginous fish | $(iv)$ Shark |
| $ (E)$ Flightless bird | $(v)$ Ostrich |
Match items in column I with those give in column II