Which of the embryo has parasite mode of nutrition.
Bird's embryo
Amphibian embryo
Reptilian embryo
Mammalian embryo
A phenomenon of embryonic induction was first described in amphibia by
Which of the following layers in an antral follicle is acellular?
Sperms become non-motile in the vagina in
The following graph of relative concentrations of the four hormones present in the blood plasma of a woman during her menstrual cycle. Identify the hormones $A, B, C$ and $D$
Immediately after implantation, ectoderm, endoderm and the mesoderm of embryo is formed from