Given below is a diagrammatic representation of alimentary canal of cockroach.

Choose the option which is not correct with respect to the function of labelled structure A, B, C and D

(1) Oesophagus opens into a sac like structure labelled as A used for storing of food.

(2) B helps in grinding of food because it have an outer thick cuticular layer and inner muscular layer.

(3) C is present at the junction of foregut and midgut and secretes digestive juice.

(4) D helps in removal of excretory product from haemolymph.

The respiratory system of cockroach consists of a network of trachea, that opens through _____(A)____ of small holes called ___(B)___ present on ___(C)____ side of body

Choose the option which correctly fills the blanks labelled as A, B and C

       Blank A                 Blank B                   Blank C

(1) 10 pairs                  Spiracles                    Dorsal

(2) 8 pairs                    Stigmata                    Lateral

(3) 10 pairs                   Spiracles                    Lateral

(4) 8 pairs                     Spiracles                     Ventral

Which of the following statements is incorrect w.rt. cockroach?

(1) In both sexes, the 10th segment of abdomen bears a pair of jointed filamentous structures called anal cerci

(2) Hind wings are transparent and are used in flight

(3) Gizzard has inner layer of thick circular muscles and thick outer layer of cuticle which
forms six chitinous plates called teeth

(4) Haemolymph is composed of colourless plasma and haemocytes

Following is the diagram of mouth parts of cockroach

Which of the following labelled structures will help in grinding and chewing of food?

(1) A & D

(2) B & C

(3) A & C

(4) D & E

Mark the correct statement with respect to cockroach

(1) Haemolymph is composed of colourless

     plasma and erythrocytes

(2) All the spiracles are always open in cockroach 

(3) Haemolymph enters heart through ostia and is

      pumped from posterior to anterior direction

(4) Haemolymph has no role in transportation of 

     nutrients and metabolic wastes

Following is diagrammatic representation of female

reproductive system of cockroach.

Find the right marking and function performed by

that part

(1) A $-$ Conglobate gland $-$ Converting of sperm

     B $-$ Spermatheca $-$ Storage of sperm

(2) A $-$ Phallomere $-$ Covering around egg

     B $-$ Titillator $-$ Opening of spermatophore

(3) A $-$ Vestibule $-$ Place to store fertilized eggs

     B $-$ Spermatophore $-$ Storage of sperms

(4) A $-$ Collaterial gland $-$ From the wall of ootheca 

     B $-$ Spermatheca $-$ Storage of sperms in female 

Match the following with respect to cockroach

   Column l                      Column ll

a. Ovaries                   (i) $4^{\mathrm{th}}- 6^{\mathrm{th}}$ segment    

b. MUshroom gland     (ii) $2^{\mathrm{nd}}- 6^{\mathrm{th}}$ segment

c. Testis                     (iii) ${14}^{\mathrm{th}}- {16}^{\mathrm{th}}$ segment

d. Ootheca number     (iv) $6^{\mathrm{th}}- 7^{\mathrm{th}} \mathrm{segment}$

                                 (v) 9 $-$ 10

(1) a(ii), b(iv), c(i), d(v)

(2) a(ii), b(iv), c(i), d(iii)

(3) a(i), b(iii), c(ii), d(v)

(4) a(iii), b(ii), c(i), d(iv) 

Brood or genital pouch in female cockroach is 

made by 

(1) $8^{\mathrm{th}} ,9^{\mathrm{th}} \mathrm{and} {10}^{\mathrm{th}}$ tergum

(2) $7^{\mathrm{th}}$ saternum only

(3) $7^{\mathrm{th}}$ , $8^{\mathrm{th}} \mathrm{and} 9^{\mathrm{th}}$ sternum

(4) $7^{\mathrm{th}}$ sternum, $8^{\mathrm{th}} \mathrm{and} 9^{\mathrm{th}}$ tergum 

Visual units that compose the compound eyes of 

insects are called

(1) Osphradia 

(2) Ommatidia

(3) Onchospheres

(4) Odontophore

The night vision of cockroach is 

(1) More sensitivity but less resolution

(2) Less sensitivity but more resolution 

(3) Both sensitivity and resolution are high

(4) Both sensitivity and resolution are low