The conglobate gland is present in the reproductive system of . . . . . . .

The figure below shows the digestive system of a cockroach. What are $P$ and $Q$?

Describe the digestive system of a cockroach.

Which of the following statements is false regarding the heart of a cockroach?

Which of the following statements is correct regarding the cockroach?

Refer to the given figure of the female reproductive system of a cockroach and identify the correct labels (marked as $1, 2, 3$ and $4$) which are collectively called the genital pouch.