Decidua which takes part in the formation of maternal portion of the placenta is
Decidua basalis
Decidua capsularis
Decidua parietalis
Chorion
The rate of cleavage is inversely proportional to the duration of
Development of structure and shape of an organism is
Which of these is used to control human population?
After implantation, finger-like projections on the trophoblast are called $...A....$ which are surrounded by $...B..$ and maternal blood. Here $A$ and $B$ refers to
Each epididymis consists of a single tightly coiled tube whose length is about