Each thoracic segment of Periplaneta americana is enclosed by four skeletal sclerites: a dorsala ventral and two lateral . The of the prothorax is also called pronotum, which covers the neck and a part of the head. Complete the above paragraph by choosing the correct sequence of words.

Question

Each thoracic segment of Periplaneta americana is enclosed by four skeletal sclerites: a dorsala ventral and two lateral . The of the prothorax is also called pronotum, which covers the neck and a part of the head. Complete the above paragraph by choosing the correct sequence of words. (A) Chitinous, tergum, sternum, pleura, tergum (B) Proteinaceous, sternum, tergum, pleura, tergum (C) Chitinous, sternum, tergum, pleura, sternum (D) Proteinaceous, tergum, pleuron, sternum, tergum

Tardigrade Admin · Accepted Answer

Periplaneta americana belongs to class Insecta, of the phylum Arthropoda and hence , it is covered by a chintinous exoskeleton , which is a character of arthropods . Arthropods also show segmentation and hence it's body is divided into various segments. The segments of this chitinous exoskeleton have been named according to their positions , the dorsal sclerites are called as tergum or tergites . The ventral sclerites are called as sternum or sternites and the lateral sclerites are known as pleurons or pleurites.