Q. In Periplaneta americana, the ventral sclerite is called

 1284  168 NTA AbhyasNTA Abhyas 2020Structural Organisation in Animals Report Error

Solution:

The entire body is covered by a hard chitinous exoskeleton (brown in colour). In each segment, the exoskeleton has hardened plates called sclerites (tergites dorsally and sternites ventrally) that are joined to each other by a thin and flexible articular membrane (arthrodial membrane).