Q. No.At the time of copulation in Cockroach
(1) Sperms are discharged
(2) Spermatophores are discharged
(3) Spermatheca are discharged
(4) Spermatozoa are discharged
(1) Sperms are discharged
(2) Spermatophores are discharged
(3) Spermatheca are discharged
(4) Spermatozoa are discharged
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
Find the incorrect match.
(1) Ovarioles in female cockroach - 16
(2) Ommatidia in Cockroach -4000
(3) Spermatheca - 2
(4) Ejaculatory duct-1
Oothecae
(1) Dark yellowish capsule
(2) Around 8 cm long
(3) Dropped near a food source with high humidity
(4) 14-16 in number
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
Nymph of cockroaches
(1) A larval stage
(2) Undergo 18 molting
(3) Have wing pads in all stages
(4) Proof of paurometabolous Development
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
Cockroaches are
(1) Vector for bacterial disease
(2) Of no economic importance
(3) Bisexual
(4) More than one option is correct
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
Assertion : The development in cockroach is heterometabolous metamorphosis.
Reason : Young ones resemble the adults in all characters.
- If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- If the assertion is true but the reason is false
- If both the assertion and reason are false
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