Malpighian tubules of cockroach are lined by which of the following cells ?
(1) Epithelial cells
(2) Ciliated cells
(3) Ciliated and glandular cells
(4) Epithelial and glandular cells
Which of the following statements is wrong?
(1) Spiracles are regulated by sphincters in Cockroach.
(2) Tracheoles is the place for gaseous exchange
(3) There will be 10 pairs of spiracles
(4) Tracheoles divide into tracheal tubes
Exoskeleton of each segment in cockroach consists
1. Dorsal tergum and a ventral sternum
2. Dorsal sternum and a ventral tergum
3. Sternum only
4. Tergum only
Which of the following mouth part act as tongue in cockraoch?
1. Labium
2. Hypopharynx
3. Maxillae
4. Labrum