Brain of cockroach supplies nerves to
1. Antennae
2. Compound eyes
3. Anal cerci
4. Both(1) & (2)
Haemolymph in cockroach is devoid of
1. Plasma
2. Haemocytes
3. Amino acids
4. Respiratory pigment
The heart receives blood from the sinuses through
1. Haemocoel
2. Alary muscles
3. Ostia
4. Aorta
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