$A$ : Most birds possess only the left ovary and left oviduct for conveying the ovum released from the ovary.
$R$ : The avian ovary does not form a corpus luteum from the ruptured ovarian follicle which undergoes rapid shrinkage
Assertion and Reason both are correct and also correct explantion.
Assertion and Reason both are correct but not explanation of assertion.
Assertion is correct, but Reason is incorrect.
Both Assertion and Reason are incorrect.
Foetal ejection reflex in human female is induced by
Neural canal develops from
Which cavity arises by the invagination of endoderm and mesoderm
Fluid filled cavity called $...A...$ is developed in $...B...$ follicle called $...C....$ Here $A, B$ and $\mathrm{C}$ are
In human female, the blastocyst