The terga, sterna and pleura of cockroach body are joined by :
- Cartilage
- Cementing glue
- Arthrodial membrane
- Muscular tissue
Answer
(3) Arthrodial membrane
Solution
As per NCERT, the body of the cockroach is covered by a hard chitinous exoskeleton.
⇒ In each segment the exoskeleton has hardened plates called sclerites: tergites (dorsal), sternites (ventral) and pleurites (lateral).
∵ These sclerites are joined to each other by a thin and flexible articular membrane (arthrodial membrane).
∴ Terga, sterna and pleura are joined by arthrodial membrane.
Answer: (3)