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Questions and Answers
What is the primary purpose of pollination?
What is the primary purpose of pollination?
- To protect plants from pests
- To provide nectar for animals
- To create a colorful environment
- To enable fertilisation and seed production (correct)
Which of the following is not a pollinating agent mentioned in the text?
Which of the following is not a pollinating agent mentioned in the text?
- Butterflies
- Beetles
- Wind
- Frogs (correct)
What happens after the pollen grain lands on the stigma in angiosperms?
What happens after the pollen grain lands on the stigma in angiosperms?
- It immediately fertilizes the ovary
- It forms a protective layer around the stigma
- It develops a pollen tube which grows down the style (correct)
- It releases a fragrance to attract animals
What can occur when pollination happens between species?
What can occur when pollination happens between species?
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What is the role of pollinating animals in the transfer of genetic material?
What is the role of pollinating animals in the transfer of genetic material?
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Study Notes
Primary Purpose of Pollination
- The main goal of pollination is to facilitate fertilization, leading to the production of seeds and fruit in flowering plants (angiosperms).
Pollinating Agents
- Wind, water, insects, birds, and bats are all significant pollinating agents, while artificial means like hand pollination are not natural agents.
Pollen Grain and Stigma Interaction
- When a pollen grain adheres to the stigma, it germinates, developing a pollen tube that extends downward to the ovule for fertilization.
Inter-Species Pollination Consequences
- Cross-pollination between different species can result in hybridization, which may produce sterile offspring or introduce new genetic traits.
Role of Pollinating Animals
- Pollinators, such as bees and butterflies, assist in transferring pollen between flowers, which promotes genetic diversity and enhances reproduction in plants.
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