- 1(current)
Q. No.Bilaterally symmetrical and acoelomate animals are exemplified by:
1. Platyhelminthes
2. Aschelminthes
3. Annelida
4. Ctenophora
Subtopic: Â Phylum Platyhelminthes |
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NEET - 2020
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Select the correct statements:
Choose the correct answer from the options given below:
| A: | Platyhelminthes are triploblastic, pseudocoelomate and bilaterally symmetrical organisms. |
| B: | Ctenophores reproduce only sexually and fertilization is external. |
| C: | In tapeworm, fertilization is internal but sexes are not separate. |
| D: | Ctenophores are exclusively marine, diploblastic and bioluminescent organisms. |
| E: | In sponges, fertilization is external and development is direct. |
Choose the correct answer from the options given below:
| 1. | (A), (C) and (D) only | 2. | (B), (C) and (D) only |
| 3. | (A) and (E) only | 4. | (B) and (D) only |
Subtopic: Â Phylum Porifera |Â Phylum Coelenterata |Â Phylum Ctenophora |Â Phylum Platyhelminthes |
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Subtopic: Â Phylum Platyhelminthes |
 98%
Level 1: 80%+
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Which of the following is not an adaptation to parasitic life?
1. production of a few well-protected eggs
2. hooks
3. suckers
4. reduced digestive system
1. production of a few well-protected eggs
2. hooks
3. suckers
4. reduced digestive system
Subtopic: Â Phylum Platyhelminthes |
 79%
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 |
 68%
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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%
Level 1: 80%+
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- 1(current)
Q. No.
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