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 incorrect with respect to connective tissue ?

1. Tendon is dense regular connective tissue.

2. Bones are rich in collagen fibres.

3. The intercellular material of cartilage is firm but pliable matrix that resists compression.

4. Agranulocytes and RBCs are devoid of nucleus.

Which among the following is not a sense organ of cockroach ?

1. Labial palps

2. Maxillary palps

3. Caudal style

4. Anal cerci

The complex animals mainly consist of how many types of tissues?

A pair of antennae arise from

Which of the following is not suitable for hypopharynx?

The head is connected with thorax-