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What is true about Nereis, scorpions, cockroaches, and silverfish?
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Important Questions on Animal Kingdom
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Identify the figures A, B, C and D given below and select the correct option.
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Read the following statements and select the incorrect ones.
(i) Circulatory system in arthropods is of closed type.
(ii) Parapodia in annelids help in swimming.
(iii) Phylum Mollusca is the second largest animal phylum.
(iv) Aschelminthes are dioecious.
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The given figures (A - D) show four animals. Select the correct option with respect to a common characteristic of any two of these animals.
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Which one of the following statements about certain given animals is correct?
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Phylum Mollusca can be distinguished from other invertebrates by the presence of _____.
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Fill up the blank spaces in the table below by selecting the correct option.
| Phylum/Class | Excretory organ | Circulatory system | Respiratory organ |
|---|---|---|---|
| Arthropoda | A | B | Lungs/Gills/ Tracheal system |
| C | Nephridia | Closed | Skin |
| D | Metanephridia | Open | E |
| A | B | C | D | E | |
|---|---|---|---|---|---|
| (i) | Green gland | Closed | Mollusca | Annelida | Tracheal system |
| (ii) | Malpighian tubule |
Open | Annelida | Mollusca | Feather-like gills |
| (iii) | Antennary gland |
Open | Porifera | Amphibia | Lungs |
| (iv) | Nephridia | Closed | Mollusca | Annelida | Lungs |
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Which one of the following is a matching set of a phylum and its three examples?
A B (i) Porifera Spongilla, Euplectella, Pennatula (ii) Cnidaria Dentalium, Physalia, Aurelia (iii) Platyhelminthes Planaria, Schistosoma, Enterobius (iv) Mollusca Loligo, Teredo, Octopus
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Which of the following is commonly called "pearl oyster"?
