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Conjugation in ciliate protozoans is essential for:
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Important Questions on Animal Diversity - I (Invertebrate Phyla)
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Tussar silk is secreted by:
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In Pheretima, septa are absent between some of the segments. They are:
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In Pheretima, the open type of nephridia are located in these segments:
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Statement : Biting and chewing mouthparts are the most primitive type of mouthparts in insects.
Reason : Holometabolus insects have biting and chewing type of mouthparts in the larvae.
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Which one of the following arthropods is viviparous?
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In Ophiuroidea, branched arms are seen in:
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Note the following:
(a) It is a freshwater, metamerically segmented protostome.
(b) The clitellum is absent.
(c) It is unisexual.
(d) Its larval form is trochophore.
(e) The nervous system is found in the epidermis.
Which of the above is true for "paddleworm"?
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Match the following:
List-I List-II
(A) Green glands (I) Scolopendra
(B) Amphids and Phasmids (II) Respiratory organ
(C) Ctenidia (III) Shell protein
(D) Poison claw (IV) Excretory organs
(E) Concholin (V) Sense organs
The correct match is:
