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Which of the following is a characteristic of wind-pollinated flower?

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Which of the following is a characteristic of wind-pollinated flower?

A. flowers lack nectar

B. flowers are conspicuous

C. flowers have perianths

D. flowers are bisexual




Pollination involves the transfer of pollen grains from anthers to stigmas. Various methods can naturally be used to do this, they are: wind, water, insects, animals and so on… different species of plants develop flowers which bear characteristics that aids any of the methods above.

For wind pollinated flowers, the pollen grains must be light, massively produced; the anthers loosely attached, no need for attractive colors and nectar, loosely hung stigmas, and no need for attractive scents.

Now for the right answer to the above question:

  1. Nectar is necessary for insect pollinated flowers and not wind pollinated ones, as they attract insects craving their juices. so, A is quite correct.
  2. Conspicuous flowers are bold flowers that usually draw the attention of insects; not required in wind pollinated flowers. B is incorrect.
  3. Perianths are enveloping structures that protects the reproductive organs and attract insects, it could to an extent hinder wind pollination. So, C is also incorrect.
  4. D is also incorrect; wind pollinated flowers are unisexual and not bisexual.
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You may please note that:

  • While the flowers of wind pollinated plants are unisexual, supporting cross-pollination; that of insect pollinated plants are bisexual supporting self-pollination.
  • By unisexual here, i mean a plant that depends on another plant for pollination.
  • By bisexual, i mean one plant that have the both sex organs and able to self-pollinate.

Use the questions and answers session to raise questions and deal further on this topic…

/ culled from 2017 JAMB-UTME biology question 18 /

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