Fill in the blanks : The entire body is covered by a hard chitinous \( P \) exoskeleton. In each...

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Fill in the blanks :
The entire body is covered by a hard chitinous
\( P \) exoskeleton. In each segment, exoskeleton has

W hardened plates called a_ b. dorsally and c.
ventrally) that are joined to each other by a thin fexible d.
(1) a-sternites, b-sclerites, c-tergites, d-arthrodial membrane .
(2) a-sclerites, b-tergites, c-sternites, d-articular membrane
(3) a-tergites, b-sternites, c-sclerites, d-articular membrane
(4) a-sclerites, b-sternites, c-tergites, d-articular membrane
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