Alary muscles play an important role in
1. Circulation of blood
2. Respiration
3. Body movement
4. Peristalsis
In cockroach, air from atmosphere enters by
1. Trachea
2. Tracheoies
3. Spiracles
4. Chitin
How many pairs of spiracles are found in cockroach?
1. 10
2. 20
3. 5
4. 25
The process through which air in tracheoles and dissolved gases in blood are exchanged is
1. Osmosis
2. Diffusion
3. Active transport
4. Facilitated diffusion
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
Hind wings in cockroach arises from
1. Prothorax
2. Mesothorax
3. Metathorax
4. Pronotum
Fore wings in cockroach arises from
1. Hypopharynx
2. Metathorax
3. Mesothorax
4. Prothorax
In cockroach, foregut comprises of
1. Pharynx, oesophagus, crop and gizzard
2. Mesenteron, crop and gizzard
3. lleum, colon and rectum
4. Pharynx, oesophagus and rectum
Hepatic caecae are found at the junction of
1. Midgut and hindgut
2. Crop and gizzard
3. Midgut and gizzard
4. Midgut and ileum