In cockroach, excretion is brought about by-

$A$. Phallic gland    $B$. Urecose gland    $C$. Nephrocytes    $D$. Fat body     $E$. Collaterial glands

Choose the correct answer from the options given below :

Select the correct sequence of organs in the alimentary canal of a cockroach starting from the mouth.

The organ of mastication in a cockroach is:

Complete the following statement :
$(a)$ In cockroach,grinding of food particles is performed by ........ .
$(b)$ Malpighian tubules help in the removal of ........ .
$(c)$ The hindgut of the cockroach is differentiated into ........ .
$(d)$ In the cockroach,blood vessels open into spaces called ........ .

The body cavity of a cockroach is also called:

Which of the following is correctly described for a common cockroach $(Periplaneta \text{ } americana)$?