MCQ
Polyspermy refers to
- AFormation of many sperms by a male
- BChanges in sperm nucleus
- CFormation of many sperms
- ✓Penetration of many sperms into an ovum simultaneously
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$R$ - In the end of $STP$ the water possess flocks.
$(I)$ Malpighian corpuscles, $PCT$ and $DCT$ the nephron are situated in medulla of the kidney
$(II)$ The loop of henle dips into medulla.
$(III)$ In juxta medullary nephrons, the loop of henle is too short and extends very little into the medulla.
$(IV)$ Vasa recta is absent or highly reduced in cortical nephrons.