Which among the following difference is incorrect between bone and cartilage ?

Option	Bone	Cartilage
1.	Hard and pliable	Solid and non-pliable
2.	Composed of osteocytes	Composed of chondrocytes
3.	Present in spaces called as lacunae	Enclosed in small cavities within matrix secreted by them
4.	In adults, bone > cartilage	In vertebrate embryo, cartilage > bone

Complete the following analogy regarding reproductive system of cockroach :-

Testes : IV-VI abdominal segments : : Ovaries : ____ abdominal segments

(1) II-VI

(2) III-VI

(3) II-VIII

(4) IV-VI

Complete the following analogy :-

Vertebrates : Brain : : Cockroach : ___________

(1) Lower-oesophageal ganglion

(2) Supra-oesophageal ganglion

(3) Nephrocytes

(4) Ommatidia

The hard chitinous exoskeleton of cockroach has sclerites which are called as:

The triangular head of cockroach is made by fusion of how many segments :

(1) Three

(2) Five

(3) Nine

(4) Six

Label A, B, C, D and E in the following figure :-

(1) Labium, mandible, hypopharynx, maxilla, labrum

(2) Labrum, hypopharynx, maxilla, mandible, labium

(3) Labrum, mandible, hypopharynx, maxilla, labium

(4) Labium, maxilla, hypopharynx, labium, mandible

Which mouth part of cockroach has grinding and incising part ?

(1) Mandible

(2) Labium

(3) Mandible and maxilla

(4) Hypopharynx

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 regarding the vision of cockroach?

(1) Compound eyes are located at dorsal surface of head.

(2) They have nocturnal type of vision.

(3) Each eye consists of 3000 malpighian tubules.

(4) Their vision is known as mosaic vision with more sensitivity but less resolution.