1. Protocerebrum
2. Deuterocerebrum
3. Tritocerebrum
4. Supra-oesophageal ganglia
Supra-oesophageal ganglia
1. Nephridia
2. Kidney
3. Flame cells
4. None of these
Nephridia
1. Extension of peristomium on ventral side
2. Extension of peristomium on dorsal side
3. Outgrowth of peristomium
4. Muscular band around peristomium
Extension of peristomium on dorsal side
1. Nervous
2. Non-nervous
3. Hormonal
4. Both (A) and (B)
Non-nervous
1. Ommatidia
2. Oscillar spots
3. Sternile
4. Sensillae
Oscillar spots
1. Bilaterally symmetrical body
2. Triploblastic
3. Coelomate animals
4. Possess jointed appendages
Possess jointed appendages
1. 10 to 20 cm deep soil
2. 60 to 90 cm deep in the soil
3. Superficial soil
4. 10 to 30 cm deep in the soil
Superficial soil
1. Flight,protection
2. Running,walking
3. Protection,flight
4. Flight,capturing prey
Protection,flight
1. Circlet of six chitinous teeth
2. Hard cuticle
3. Numerous fold
4. Glandular layers
Circlet of six chitinous teeth
1. Above buccal cavity
2. Below pharynx
3. Above the junction of buccal cavity and pharynx
4. Below the junction of buccal cavity and pharynx
Above the junction of buccal cavity and pharynx