Winged pollen grains are present in:
1 Mustard
2. Cycas
3. Mango
4. Pinus
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich one of the following plants shows a very close relationship with a species of moth, where none of the two can complete its life cycle without the other?
1. | Hydrilla | 2. | Yucca |
3. | Banana | 4. | Viola |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyDioecy in plants prevents:
(1) Autogamy but not geitonogamy
(2) Geitonogamy but not autogamy
(3) Both autogamy and geitonogamy
(4) Neither autogamy nor geitonogamy
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAttractants and rewards are required for:
1. Entomophily
2. Hydrophily
3. Cleistogamy
4. Anemophily
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyFlowers which have single ovule in the ovary and are packed into inflorescence are usually pollinated by:
1. Bee
2. Wind
3. Bat
4. Water
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA dioecious flowering plant prevents both:
1. Autogamy and geitonogamy
2. Geitonogamy and xenogamy
3. Cleistogamy and xenogamy
4. Autogamy and xenogamy
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPollination in water hyacinth and water lily is brought about by the agency of
(1) water
(2) insects or wind
(3) birds
(4) bats
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology