At the time of copulation in Cockroach

(1) Sperms are discharged

(2) Spermatophores are discharged

(3) Spermatheca are discharged

(4) Spermatozoa are discharged

Subtopic:  Cockroach:Male Reproductive System (OLD NCERT) |
 73%
From NCERT
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Female reproductive system of cockroaches has

(1) Ovaries lie ventrally in the 2nd to 6th abdominal segments

(2) Total 8 ovarian tubules or ovarioles

(3) Vagina also known as single median oviduct

(4) A spermatheca is present in the 6th segment

Subtopic:  Cockroach: Female Reproductive System (OLD NCERT) |
From NCERT
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Find the incorrect match.

(1) Ovarioles in female cockroach - 16

(2) Ommatidia in Cockroach -4000

(3) Spermatheca - 2

(4) Ejaculatory duct-1

Subtopic:  Cockroach: Female Reproductive System (OLD NCERT) |
From NCERT
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Oothecae

(1) Dark yellowish capsule

(2) Around 8 cm long

(3) Dropped near a food source with high humidity

(4) 14-16 in number

Subtopic:  Cockroach: Female Reproductive System (OLD NCERT) |
 60%
From NCERT
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How many molting will be observed in the case of female cockroaches for 20 eggs thinking that all will be converted in adults?

(1) 260

(2) 120

(3) 130

(4) 660

Subtopic:  Cockroach: Female Reproductive System (OLD NCERT) |
 86%
From NCERT
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Nymph of cockroaches

(1) A larval stage

(2) Undergo 18 molting

(3) Have wing pads in all stages

(4) Proof of paurometabolous Development

Subtopic:  Cockroach: Female Reproductive System (OLD NCERT) |
 71%
From NCERT
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If during development of P. americana total 39 molting were observed of different sequential stages, then how many eggs were there?

(1) 3

(2) 13

(3) 6

(4) 9

Subtopic:  Cockroach: Female Reproductive System (OLD NCERT) |
 79%
From NCERT
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Cockroaches are

(1) Vector for bacterial disease

(2) Of no economic importance

(3) Bisexual

(4) More than one option is correct

Subtopic:  Cockroach: Intro & External Morphology (OLD NCERT) |
 80%
From NCERT
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Vestibulum is a part of

(1) Genital chamber of female cockroach

(2) Genital pouch of female cockroach

(3) Both a and b

(4) Rudimentary part of female circulatory system in cockroach

Subtopic:  Cockroach: Female Reproductive System (OLD NCERT) |
From NCERT
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Assertion  :      The development in cockroach is heterometabolous metamorphosis.

Reason     :      Young ones resemble the adults in all characters.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
Subtopic:  Cockroach: Female Reproductive System (OLD NCERT) |
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