Question

Choose the correct option about morphology of cockroach

Answer 1

• (A)Tergites - (3)Dorsal sclerites -A tergum associated adjective tergal) is the dorsal ('upper') portion of an arthropod body segment other than the head. These are dorsal sclerites.
  
• (B)Tegmina - (1)Fore wings -Forewings of cockroach are also called as Tegmina. Tegmina are opaque dark and leathery and cover the hind wings when at rest.
  
• (C)Hypopharynx - (4)Tounge -Hypopharynx is also called as Tounge. It is located medially to the mandibles and the maxillae behind the preoral cavity and in front of the labium.
  
• (D)Labium -(5)Lower Lip -Labium is also called as lower lip. It is positioned towards the back of the head and helps hold food in place when the insect feeds. The labium actually represents the fused pair of ancestral second maxillae.
  
• (E)Labrum - (2)Upper lip -Labrum or the upper lip is a broad and roughly rectangular shaped structure. It hangs from the front edge of the head on the lower side. It covers the mouth and the mandibles.