- 1(current)
Q. No.| Assertion (A): | Platyhelminthes are commonly known as flatworms |
| Reason (R): | They have a dorso-ventrally flattened body |
| 1. | Both (A) and (R) are true and (R) is the correct explanation for (A) |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation for (A) |
| 3. | (A) is true, (R) is false |
| 4. | (R) is true (A)is false |
Subtopic: Â Phylum Platyhelminthes |
 94%
Level 1: 80%+
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Assertion (A) : Tapeworms absorb digested food by its body surface.
Reason (R) : Tapeworms possess digestive organs.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Reason (R) : Tapeworms possess digestive organs.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Â Phylum Platyhelminthes |
 65%
Level 2: 60%+
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Assertion(A) : Tapeworms, round worms and pin worms are endoparasites of human intestine.
Reason (R) : Improperly cooked food is the source of all intestinal infections.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Reason (R) : Improperly cooked food is the source of all intestinal infections.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Â Phylum Ctenophora |Â Phylum Aschelminthes |Â Phylum Platyhelminthes |
Level 3: 35%-60%
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Assertion (A) : The organisms of Platyhelminths are usually hermaphrodites.
Reason (R) : These organisms possess internal as well as external fertilization.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Reason (R) : These organisms possess internal as well as external fertilization.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Â Phylum Platyhelminthes |
 69%
Level 2: 60%+
Hints
Assertion (A): Platyhelminthes are also known as Flatworms.
Reason (R): Platyhelminthes have a dorsolaterally flattened body.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason (R): Platyhelminthes have a dorsolaterally flattened body.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Â Phylum Platyhelminthes |
Level 3: 35%-60%
Hints
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 |
 67%
Level 2: 60%+
NEET - 2023
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- 1(current)
Q. No.
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