Function of allantois in mammal is
Respiration only
Excretion
Nutrition, excretion and respiration
Protection from shocks
Rapid secretion of $LH$ in ovulation causes
The origin of kidney and ureter in Rana tigrina is
Sertoli cells are regulated by the pituitary hormone known as
The membrane investing the ovum just outside the membrana granulosa is
Function of gynogamone$-I$ is