Statement I: | Sponges exhibit a cellular level of organization. |
Statement II: | Cnidarians have a tissue level of organization. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyI: | Platyhelminthes |
II: | Mollusca |
III: | Annelida |
1. | Only I | 2. | Only II |
3. | Only II and III | 4. | I, II, and III |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. | An open circulatory system | 2. | A closed circulatory system |
3. | A lymphatic system | 4. | A portal circulation |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. | Bilateral symmetry | 2. | Three embryonic layers |
3. | Incomplete digestive system | 4. | Coelom |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyI: | The body is divided into segments only externally. |
II: | There is a serial repetition of at least some organs. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyI: | is derived from embryonic mesoderm. |
II: | is present on the ventral side during embryonic development in chordates. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following is not a feature of Porifera?
1. Exclusively marine animals
2. Presence of a water transport or a canal system
3. Sexes are not separate
4. Internal fertilization and indirect development
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. | Choanocyte and helps sponges in movement of water through their canal system |
2. | Choanocyte and helps sponges in reproducing asexually under favourable conditions |
3. | Cnidocyte and helps sponges in catching their prey by paralyzing them |
4. | Colloblast and helps sponges in sticking to a surface |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyRegarding 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
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biologya: | 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 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology