Which one of the following parts serves the function of primary organizer in frog
Dorsal tip of gastrula
Grey crescent area of frog
Chorda-mesoderm of gastrula
Any of the above
The gestation period of rabbit is
Find out $A, B$ and $C$ in the figure given below
The longest visceral muscle cell is present in
In man the foetal membrane which forms the intimate connection with the uterine tissue is
Which of these is used to control human population?