Which of the following statements is wrong?

(1) Spiracles are regulated by sphincters in Cockroach.

(2) Tracheoles is the place for gaseous exchange

(3) There will be 10 pairs of spiracles

(4) Tracheoles divide into tracheal tubes

Subtopic:  Cockroach: Respiratory System |
 66%
From NCERT
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Male cockroach and female cockroach can be
differentiated by :
1. Ocelli

2. Anal cerci

3. Anal styles

4. Male rabbit

Subtopic:  Cockroach: Intro & External Morphology |
 91%
From NCERT
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Which of the following statement is incorrect with respect to cockroach?

1. The exoskeleton of each segment consists of four plate-like pieces called sclerites

2. Labium bears tactile and gustatory sensory setae

3. In cockroach, malpighian tubules, fat bodies, nephrocytes, cuticle, and uricose glands (in some species) Helps in excretion

4. Internally mesenteron is lined by cuticle and covered by a very thin and transparent peritrophic membrane

Subtopic:  Cockroach: Digestive System |
From NCERT
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Anal cerci are paired, jointed outgrowth found in cockroach. These arise from

1. 9th sternum

2. 10th tergum

3. 9th tergum

4. 8th tergum

Subtopic:  Cockroach: Intro & External Morphology |
 75%
From NCERT
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Which of the following is correct with respect to cockroach?

a. Internally mesenteron is lined with cuticle

b. In abdomen eight pair of spiracles are present

c. All sperms of seminal vesicle are glued together into spermatophore

d. Malphigian tubules are present at the junction of midgut and hindgut

1. a, b & c

2. a & b

3. b & d

4. b, c & d

Subtopic:  Cockroach: Respiratory System | Cockroach: Excretory System | Cockroach:Male Reproductive System |
 78%
From NCERT
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Mark the incorrect statement with respect to head of cockroach

(1) Head is triangular in shape and lies anteriorly at right angle to the longitudinal body axis

(2) Formed by fusion by six segments and shown great mobility in all directions due to flexible neck

(3) First basal podomere of antennae is smallest and is called pedicel which articulates with antennae socket

(4) On each lateral side it bears a large and blackish compound eye

Subtopic:  Cockroach: Head & Mouth Parts |
 60%
From NCERT
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On an average female cockroach produce ________ oothecae, each containing ________ eggs.

(1) 9-10, 14-16

(2) 14-16, 9-10

(3) 2-4, 10-12

(4) 6-8, 8-10

Subtopic:  Cockroach: Female Reproductive System |
 85%
From NCERT
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Tegmina arises from

(1) Prothorax

(2) Mesothorax

(3) Metathorax

(4) Neck region between head and thorax

Subtopic:  Cockroach: Intro & External Morphology |
 79%
From NCERT
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Which of the following statement is correct with reference to the cockroach eye?

1. Both eyes together consist of about 2000 hexagonal ommatidia

2. Its vision has more sensitivity but less resolution

3. Mosaic vision is not found due to diurnal habit

4. Compound eyes are situated at the vertex region of the head

Subtopic:  Cockroach: Compound Eye |
 76%
From NCERT
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Which of the following statement is incorrect with respect to cockroach?

(1) Head of cockroach is hypognathous and is formed by the fusion of six segments

(2) A pair of wings which arise from mesothorax are thick and leathery

(3) Body of cockroach is covered with a thick, hard, chitinous cuticle

(4) The 9th segment of male and female cockroach bear anal style

Subtopic:  Cockroach: Abdomen |
 83%
From NCERT
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