MCQ
In rainy season, the doors get wet due to:
- ✓Imbibition
- BAbsorption
- CDiffusion
- DEndosmosis
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Column $I$
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Column $II$
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| $A$ | Hemaphrodite | $i.$ | Produces blood cells and haemoglobin |
| $B$ | Direct development | $ii.$ | Tectis and ovary in the same animal |
| $C$ | Chemoreceptor | $iii.$ | Larval from absent |
| $D$ | Blood gland in earthworm | $iv.$ | Sense of chemical substances |
$I$. The impulse of the heart beat originates from $SAN$
$II$. Rate of the heart is determined by $SAN$
$III$. Bundle of His/AV bundle is present in the interventricular septum
$IV$. Atrio Ventricular Node $(AVN)$ is situated in the lower left corner of the right auricle
Choose the correct option