The blood of cockroach contains no respiratory pigment. It means that
cockroach does not respire.
respiration is anaerobic.
oxygen goes directly into tissues by diffusion via skin
oxygen reaches the tissues via haemocoel.
Explain reproductive system of male cockroach
Select the correct sequence of organs in the alimentary canal of cockroach starting from mouth
In cockroach, the testes are present in
Which of the following characteristics is incorrect with respect to cockroach?
Figure given below shows reproductive system of female cockroach. The correct labellings indicated by alphabets $(A, B \& C)$ are respectively