Regarding the cell shown in the given figure:

I: The name Cnidaria is derived from this cell
II: The stinging capsule present in the cell is called as nematode
III: These cells help cnidarians in anchorage, defence and in capturing the prey

1. While I and II are correct, III is incorrect
2. I, II and III are correct
3. Only II is incorrect
4. Only I is correct

Subtopic:  Phylum Coelenterata |
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In Obelia:
a: both polyp and medusa forms exist during its life cycle
b: metagenesis, a sort of alternation of generation, is seen
c: polyps produce medusae sexually and medusae form the polyps sexually
 
1. only a is correct 2. only a and b are correct
3. only c is correct 4. a, b and c are correct
Subtopic:  Phylum Coelenterata |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology