Plant Reproduction
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FordMotor
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BIOLOGY
Plant Reproduction
Pollen Grain
Pollen grains are tiny survival capsules engineered for a perilous journey through air and animal.
15 hours ago
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What is the primary evolutionary trade-off plants face in producing pollen grains?
Producing pollen grains that can survive underwater environments.
Balancing the energy cost of producing large quantities of pollen with the need to ensure successful fertilization.
Making pollen grains large enough to be visible to the naked eye for easier pollination.
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BOTANY
Plant Reproduction
Female Inflorescence in Maize
The maize ear’s evolution transformed wild grass into a global food powerhouse
10 Feb 2026
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How did the development of female inflorescences (ears) in maize influence its domestication and agricultural success?
By producing kernels that could be selectively bred for size and yield, enabling humans to cultivate maize as a staple crop.
By producing pollen that fertilized other plants, increasing genetic diversity.
By allowing maize to self-pollinate exclusively, reducing the need for cross-pollination.
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Peter
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BIOLOGY
Plant Reproduction
Crop Pollination
Pollinators like bees contribute to one-third of the global food supply by enabling crop fertilization
7 Feb 2026
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Why is animal-mediated pollination critical for many crop plants?
Because it facilitates the transfer of pollen between flowers, leading to fertilization and seed production.
Because animals directly fertilize the plants by depositing seeds into the soil.
Because pollination happens automatically without the need for any external agents.
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Steve0000
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BIOLOGY
Plant Reproduction
Ovule
Inside the ovule: the tiny structure that houses the female plant reproductive cells
22 Jan 2026
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What is the primary function of the megagametophyte within the ovule of seed plants?
To produce the egg cell for fertilization
To provide structural support to the ovule
To nourish the developing seed after fertilization
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JOHN_BASH
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BIOLOGY
Plant Reproduction
Pollen Deposition
Pollen deposition is a vital process enabling plant reproduction through precise pollen transfer mechanisms
21 Jan 2026
0
What is the primary role of pollen deposition in the reproductive cycle of seed plants?
To transfer male gametes to the female reproductive structures for fertilization
To produce seeds directly without fertilization
To attract pollinators through scent and color
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