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Zoology class 11 NEET > ANIMAL MORPHOLOGY- COCKROACH > Flashcards

ANIMAL MORPHOLOGY- COCKROACH Flashcards

1
Q

The dorsal segment of each segment in cockroach consists of

A

Dorsal tergum, ventral sternum and lateral pleura

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2
Q

The chitinous plate in covkroaches are k/a

A

Sclerites

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3
Q

The sclerites are joined by a ___ membrane k/a ____

A

The sclerites are joined by an articular membrane known as arthrodial membrane

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4
Q

The body of cockroach is divided into

A
  1. Head
  2. Thorax
  3. Abdomen
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5
Q

The head is ___ in shape

A

Triangular

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6
Q

The head of cockroach is ___ type

A

Biting and Chewing type

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7
Q

The antenna bears ___ receptors

A

Tactile and olfactory receptors

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8
Q

Which mouth part acts as tongue

A

Hypopharynx

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9
Q

The thorax is divided into __ segments, they are

A

3 segments:
1. Anterior Prothorax
2. Middle Mesothorax
3. Posterior Metathorax

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10
Q

The forewing are also known as

A

Wing cover/ tegmina/ elytra

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11
Q

Which pair of wings is used for flight

A

Hind wings

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12
Q

Abdomen has __ segment in adults and ____ in embryo

A

Abdomen has 10 segments in adults and 11 segments in embryo

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13
Q

What is the functional of anal cerci

A

They are sensitive to sound and other vibrations

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14
Q

The anal cerci is present in

A

10th tergum

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15
Q

Anal styles is present in

A

9th sternum in male cockroaches only

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16
Q

The genital aperture is surrounded by some sclerites known as

A

Gonapophyses or Phallomeres

17
Q

Anus lies in

A

10th abdominal segment

18
Q

The alimentary canal of cockroaches consists of

A
  1. Foregut/ stomodaeum
  2. Midgut/mesenteron
  3. Hindgut/ proctodaeum
19
Q

The foregut consists

A

Mouth, pharynx, oesophagus, crop, gizzard

20
Q

Between the junction of gizzard and mid gut there is presence of

A

Hepatic or gastric caecae.. they are 6-8 in number

21
Q

The junction between midgut and hindgut is

A

Malphigian tubules… it is 100-150 in number

22
Q

The hindgut comprises of

A

Illeum, rectum and colon

23
Q

The circulatory system of cockroach consists of

A

Blood/haemolymph, heart, haemocoel and anterior aorta

24
Q

The heart of cockroach is myogenic/neurogenic

A

Neurogenic

25
Q

What is Haemocoel

A

The body cavity of cockroach is filled with blood and thus, it is k/a Haemocoel

26
Q

How many pairs of alary muscles are found in the heat of cockroach

A

12 pairs

Zoology class 11 NEET (13 decks)

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