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Earn 100

Which one of the following is not hermaphrodite animal?
(a)Leeches
(b)Polychaetes
(c)Flatworms
(d)Earthworm

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Important Questions on Animal Diversity - I (Invertebrate Phyla)
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A molluscan with calcareous spicules is

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Wax glands In honey bees are present in these segments:

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Craspedote medusa is present in which of the following pairs?

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Identify the nematodes which have various shapes of amphids but are without phasmids.

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In the transverse section of Pheretima, identify the correct sequence of body wall layers from outer to inner side.
(A) Circular muscles
(B) Parietal peritoneum
(C) Epidermis
(D) Cuticle
(E) Longitudinal muscles

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Statement: In gastropods, due to torsion mantle cavity is placed anteriorly behind and above the head.
Reason: During the larval stage, visceral mass, shell and mantle cavity are twisted upto counterclockwise with respect to the head and foot.

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Identify the correct combinations
(A) Housefly-Labellum-Pseudotrachea
(B) Moth-Labellum-Dutton's membrane
(C) Butterfly- 1st Maxillae-Galea
(D) Tsetse fly-Rostrum-haustellum

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Study the following and choose the correct one.
List-I (Animal) | List-II (Character) | List-III (Class) | |
I. | Sea urchin | Aristotle's Lantern | Echinoidea |
II. | Sea cucumber | Respiratory trees | Holothuroidea |
III. | Sea biscuit | Anus is absent | Asteroidea |
IV. | Sea stars | Pedicellaria with two jaws | Ophiuroidea |
