Q. No.Complete the following analogy :-
Vertebrates : Brain : : Cockroach : ___________
1. Lower-oesophageal ganglion
2. Supra-oesophageal ganglion
3. Nephrocytes
4. Ommatidia
The triangular head of cockroach is made by fusion of how many segments :
1. Three
2. Five
3. Nine
4. Six
Which among the following statements with respect to forewings of cockroach is incorrect?
1. They are called as tegmina.
2. They are opaque, leathery and dark.
3. They arise from prothorax.
4. They cover hindwings when at rest.
Which among the following statements are incorrect about cockroach?
1. Haemocytes lack respiratory pigment.
2. Has 13 chambered heart on the ventral side of the body.
3. Blood from sinuses enter heart through ostia.
4. Has 10 pairs of spiracles present on lateral side of body.
Which among the following is not a sense organ of cockroach ?
1. Labial palps
2. Maxillary palps
3. Caudal style
4. Anal cerci
Which of the following is not suitable for hypopharynx?
1. A median lobe
2. Flexible
3. Acting a tongue
4. Formed by one of the segments of head
The head is connected with thorax-
1. By a long extension of prothorax
2. By a short extension of prothorax
3. By a short extension of neck
4. By a long extension of neck
Tegmina are……… while hind wings are…………
1. Opaque dark and leathery; transparent and membranous
2. Transparent and membranous; Opaque and dark leathery
3. Translucent dark and membranous; transparent and leathery
4. Opaque and membranous; transparent and leathery
Male genital pouch
1. Lies at the hind end of the abdomen
2. 9th and 10th terga and 9th sterna
3. Ventral anus, ventral male genital pore and gonapophysis
4. More than one option is correct
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