Choose incorrect answer about characters shown in cockroach.
Blood vascular system - close.
Respiratory system - network of trachea
Head - triangular
Eye - compound
Phallic organs in cockroach are related to
Figure given below shows reproductive system of female cockroach. The correct labellings indicated by alphabets $(A, B \& C)$ are respectively
It does not take part in excretion in cockroach
Which one of the following is one of the paths followed by air or $O_2$ during respiration in the adult male Periplaneta americana as it enters the animal body?
Explain the structure of brain and neuron of cockroach