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Q. No.The organism shown in the given figure is a/an:
| 1. | Urochordate | 2. | Cephalochordate |
| 3. | Annelid | 4. | Hemichordate |
Subtopic: Â Phylum Hemichordata |
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Excretory organ in Balanoglossus is
1. nephridia
2. antennary gland
3. flame cells
4. proboscis gland
Subtopic: Â Phylum Hemichordata |
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Which of the following is true for Hemichordata?
| 1. | Earlier placed under phylum of Chordata |
| 2. | Now placed under Non- Chordata |
| 3. | Notochord is absent |
| 4. | All of these |
Subtopic: Â Phylum Hemichordata |
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The phylum which was earlier considered as a subphylum under chordata but now placed as a separate phylum, in non-chordates is
1. Urochordata
2. Hemichordata
3. Cephalochordata
4. Vertebrata
Subtopic: Â Phylum Hemichordata |
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Hemichordates are placed separately from chordates mainly because they:
| 1. | Lack pharyngeal gill slits |
| 2. | Do not show bilateral symmetry |
| 3. | Possess stomochord instead of a true notochord |
| 4. | Are exclusively freshwater organisms |
Subtopic: Â Phylum Hemichordata |
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Which of the following phyla has a body divided into a proboscis, collar, and trunk, and lacks a notochord, though it was initially classified under Chordata?
| 1. | Mollusca | 2. | Echinodermata |
| 3. | Hemichordata | 4. | Arthropoda |
Subtopic: Â Phylum Hemichordata |
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Consider the two statements:
| Assertion (A): | Hemichordates are chordates. |
| Reason (R): | Notochord and stomochord are homologous. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A) |
| 2. | Both (A) and (R) are True but (R) does not correctly explain (A) |
| 3. | (A) is True, (R) is False |
| 4. | Both (A) and (R) are false |
Subtopic: Â Phylum Hemichordata |
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Identify the incorrect statement about the phylum Hemichordata:
| 1. | Hemichordates have a body divided into proboscis, collar, and trunk. |
| 2. | Balanoglossus is an example of a hemichordate. |
| 3. | Hemichordates have a closed circulatory system. |
| 4. | Respiration in hemichordates occurs through gills |
Subtopic: Â Phylum Hemichordata |
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Q. No.
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