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Match the following with regard to Periplaneta americana.
Column I Column II
(a) Phallomeres (i) Digestive system
(b) Haemolymph (ii) Respiratory system
(c) Hypopharynx (iii) Circulatory system
(d) Tracheoles (iv) Reproductive system
Select the correct option.
(a) (b) (c) (d)
1. iv i iii ii
2. iv iii ii i
3. iii iv ii i
4. iv iii i ii

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answer is D.

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Detailed Solution

In cockroaches,

haemolymph (blood) aids in circulation.
hypopharynx (tongue) is a mouthpart (part of digestive system).
tracheoles help in exchange of gases (respiration).
phallomeres are copulatory structures which aid in reproduction.

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