MCQ
‘Bat’ is classified as a mammal because
- ✓It has hairs
- BIt can fly
- CIt has pinna
- DIt has testes
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| Column $-I$ | Column $-II$ |
| $(a)\; P-$wave | $(i)$ Depolarisation of ventricles |
| $(b)\; QRS$ complex | $(ii)$ Repolarisation of ventricles |
| $(c)\; T-$wave | $(iii)$ Coronary ischemia |
| $(d)$ Reduction in the size of $T-$wave | $(iv)$ Depolarisation of atria |
| $(v)$ Repolarisation of atria |
Select the correct option
$(a)\quad (b)\quad (c) \quad (d)$
$I$. Ovulation do not occur during the lactational period
$II$. Chances of the failure of contraception are almost nil upto six months following parturition
$III$. Side effects are almost nil
$IV$. It is a natural method of contraception
$V$. It increases phagocytosis of sperms