Identify the option where all the given animals belong to the same Phylum?
1. Portuguese man-of-war, Sea anemone, Sea-pen and Sea-fan
2. Scypha, Fresh water sponge, Bath sponge and Brain Coral
3. Roundworm, Filaria worm, Hookworm and Tapeworm
4. King crab, Mosquito, Silkworm and Blood sucking leech
Subtopic: Â Phylum Coelenterata |
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Level 1: 80%+
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The characteristics of osteichthyes include:
1. Only I and II
2. Only II and III
3. Only I and III
4. I, II and III
| I: | Four pairs of gills covered by an operculum on each side |
| II: | Skin covered with placoid scales |
| III: | Regulation of buoyancy by an air bladder |
2. Only II and III
3. Only I and III
4. I, II and III
Subtopic: Â Comparative study of Cartilagenous & Bony Fishes |Â Class Osteichthyes |
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Level 2: 60%+
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Hippocampus [sea horse] is a:
| 1. | marine bony fish |
| 2. | fresh water bony fish |
| 3. | cartilaginous fish |
| 4. | limbless amphibian |
Subtopic: Â Comparative study of Cartilagenous & Bony Fishes |Â Class Osteichthyes |
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Consider the given statements:
The number of correct statements is:
| I: | Annelids are metamerically segmented animals with a true coelom. |
| II: | Arthropods are the most abundant group of animals characterised by the presence of jointed appendages. |
| III: | Molluscs have a soft body surrounded by an external calcareous shell. |
| IV: | Echinoderms possess a spiny skin. |
| V: | Hemichordates are fresh water animals. |
| 1. | 2 | 2. | 3 |
| 3. | 4 | 4. | 5 |
Subtopic: Â Phylum Annelida |Â Phylum Arthropoda |Â Phylum Mollusca |Â Phylum Echinodermata |Â Phylum Hemichordata |
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Most vertebrates:
| I: | possess a jaw |
| II: | have a cartilaginous endoskeleton |
| 1. | Only I is correct |
| 2. | Only II is correct |
| 3. | Both I and II are correct |
| 4. | Both I and II are incorrect |
Subtopic: Â Phylum Chordata |
 61%
Level 2: 60%+
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Study the Assertion statement followed by the Reason statement given below:
| Assertion (A): | The digestive system in Platyhelminthes is called incomplete. |
| Reason (R): | Platyhelminthes are mostly endoparasites found in animals including human beings. |
| 1. | (A) is True but (R) is False. |
| 2. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 3. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 4. | (A) is False but (R) is True. |
Subtopic: Â Phylum Platyhelminthes |
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Aschelminthes are:
| 1. | radially symmetrical, triploblastic and pseudocoelomate animals. |
| 2. | bilaterally symmetrical, triploblastic and acoelomate animals. |
| 3. | bilaterally symmetrical, triploblastic and pseudocoelomate animals. |
| 4. | radially symmetrical, diploblastic and eucoelomate animals. |
Subtopic: Â Phylum Aschelminthes |
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The type of circulatory system in which the blood is pumped out of the heart and the cells and tissues are directly bathed in it is found in all of the following except:
| 1. | Arthropods | 2. | Hemichordates |
| 3. | Most molluscs | 4. | Annelids |
Subtopic: Â Basis of Classification |
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Members of Phylum Platyhelminthes typically have bodies that are ____ compressed.
1. dorso-laterally
2. bilaterally
3. ventro-laterally
4. dorso-ventrally
1. dorso-laterally
2. bilaterally
3. ventro-laterally
4. dorso-ventrally
Subtopic: Â Phylum Platyhelminthes |
 88%
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How many of the given statements regarding members of Porifera are correct?
1. 2
2. 3
3. 4
4. 5
| I: | They are exclusively marine. |
| II: | They have cellular level of organisation. |
| III: | They have a water vascular system with tube feet. |
| IV: | Digestion is intracellular. |
| V: | Fertilisation is external and development is direct. |
2. 3
3. 4
4. 5
Subtopic: Â Phylum Porifera |
 60%
Level 2: 60%+
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