MCQ
When a normal heart is injected with physiological concentration of adrenalin, it shows
- ADecreased rate
- BSystolic arrest
- CSustained increased rate
- ✓First increased rate than normal rate
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| $(a)$ Siliqua | $(i)$ Lycopersicumesculentum |
| $(b)$ Caryopsis | $(ii)$ Triticumaestivum |
| $(c)$ Berry | $(iii)$ Helianthus annuus |
| $(d)$ Cypsela | $(iv)$ Brassica campestris |
$\begin{array}{|p{0.3\linewidth}|p{0.6\linewidth}|} \hline Column\,\,-I & Column\,\,-II \\ \hline (p)\,\,Sponges & (I)\,\,Through\,\,tracheal\,\,tubes \\ \hline (q)\,\,Insects & (II)\,\,Through\,\,lungs \\ \hline (r)\,\,Molluscs & (III)\,\,Vascularized\,\,gills \\ \hline (s)\,\,Reptiles & (IV)\,\,Simple\,\,diffusion\,\,over\,\,their\,\,entire\,\,body\,\,surface \\ \hline & (V)\,\,by\,\,their\,\,moist\,\,cuticle \\ \hline \end{array}$
$p - q - r - s$