Phallic organs in cockroach are related to
Male excretory system
Male reproductive system
Female excretory system
Female reproductive system
In the development of the human body, the ectoderm is responsible for the formation of
Yolk of egg in the vertebrates is formed in
The nerve cells, brain and spinal cord or central nervous system develops from embryonic
What is the female counterpart of prostate gland in the male $(man)$
Middle gastrula is characterised by