Fill up the blanks in the following statement with the appropriate option.

In all the connective tissue, except ___A_____, the cells secrete fibres of structural proteins called as ____B______.

(1) A: cartilage, B: mast cells

(2) A: blood, B: macrophage

(3) A: blood, B: elastin or collagen

(4) A: cartilage, B: chondrocytes

Which among the following is responsible for cementing action to keep adjacent cells together ?

(1) Cell junctions

(2) Adhering junctions

(3) Communication junctions

(4) Gap junctions

Which epithelium is present in inner lining of ducts of salivary glands and of pancreatic ducts ?

(1) Ciliated epithelium

(2) Compound epithelium

(3) Columnar epithelium

(4) Squamous epithelium

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

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