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Flowering plants have major devices to d...

Flowering plants have major devices to discourage self pollination and to increase cross pollination. Point out any four devices.

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Assertion: Flowering plants have developed many out breeding devices to discourage self-pollination and to encourage cross-pollination. Reason: Continued self-pollination result in inbreeding depression.

Flowering plants have evolved as outbreeding devices because

In most plants continuous self pollination leads to inbreeding depression while in others certain devices that help to discourage self pollination. Give any four devices.

Flowering plants evolved an array of adaptations to achieve pollination. Point out adaptations found in flowers for insect pollination and wind pollination.

Flowering plants evolved an array of adaptations to achieve pollination. Explain pollination.

Can cross pollination occour in cleistogamous flowers?

Sunflower is pollinated by insects while rice is pollinated by wind. Plants can be self or cross pollinated : write any two mechanisms existing in nature to promote cross pollination

MAXIMUM PUBLICATION-SEXUAL REPRODUCTION IN FOLLOWING PLANTS-EXERCISE
  1. Pollen grains in angiosperms are not motile. They have to be carried t...

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  2. Pollen grains in angiosperms are not motile. They have to be carried t...

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  3. Flowering plants have major devices to discourage self pollination and...

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  4. Maize consists of nectarless flowers but in orchids flowers are nectar...

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  5. Maize consists of nectar less flowers but in orchids flowers are necta...

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  6. Wind is an abiotic agent that helps in pollination. Write any six feat...

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  7. Observe the figure given below and explain its structure. .

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  8. Observe the diagram given below. . Copy the diagram, and label an...

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  9. Observe the diagram given below. . Explain double fertilization.

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  10. Given below in the diagram showing the transfer of pollen grains. . ...

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  11. Given below in the diagram showing the transfer of pollen grains. . ...

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  12. Microsporangium is generally surrounded by four wall layers. Name the ...

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  13. Match the following : .

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  14. Copy the picture given above and mark the following : Connective tis...

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  15. Transfer of pollen grains from the anther to the stigma of a flower is...

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  16. Transfer of pollen grains from the anther to the stigma of a flower is...

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  17. After fertilization in flowering plants, seeds bearing embryos are fou...

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  18. After fertilization in flowering plants, seeds bearing embryos are fou...

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  19. Teacher wrote the steps of a crop imporvement programme on the blackbo...

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  20. +2 students of a school at Kasargod district on their study tour colle...

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