1. Calium carbonate
2. Calcium phosphate
3. Chitinous cuticle
4. Calcium sulphate.
Chitinous cuticle
1. Contact exchange theory
2. Carbonic acid exchange theory
3. Active absorption theory
4. None of the above
Carbonic acid exchange theory
1. Pleuron
2. Plastron
3. Tergum
4. Sternum
Tergum
1. Sulphur and potassium
2. Sulphur and boron
3. Manganese and copper
4. Zinc and ion
Sulphur and boron
1. Lingua
2. Ligula
3. Labium
4. Labrum
Ligula
1. Brings about healthy root growth
2. Promotes fruit ripening
3. Retards protein formation
4. None
Retards protein formation
1. only in male Ascaris
2. only in male cockroach
3. only in female cockroach
4. in both male and female cockroach.
in both male and female cockroach.
1. 11 jointed
2. 13 segmented
3. Unjointed
4. Many jointed.
Many jointed.
1. Thigmoreceptors, sensitive to touch
2. To help in catching insects
3. Locomotory structures
4. Feeding structures.
Thigmoreceptors, sensitive to touch
1. Ca
2. Mg
3. K
4. All the above
All the above