audio_toolbox_notes
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- arselectronica.jpg
- 1280×800
- 2018/08/01 15:12
- 161.4 KB
- igb_smaller_2.jpg
- 2448×2448
- 2018/08/01 15:14
- 493.6 KB
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- 461×605
- 2018/08/01 15:14
- 31.3 KB
- intelligentguerrillabeehive.jpg
- 510×456
- 2018/08/01 15:14
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- 1200×1800
- 2018/08/01 15:14
- 263.5 KB
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- 2018/08/01 15:14
- 220.9 KB
- skeleton_beehive.jpg
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- 2018/08/01 15:14
- 131.8 KB
File
- Title:
- Hollyhock pollen
- Date:
- 2023/09/13 09:01
- Filename:
- 800wm.jpg
- Caption:
- Pollen. Coloured scanning electron micrograph (SEM) of a pollen grain of the garden hollyhock, Althaea rosa. Its outer wall (exine) has a spiky structure. When the pollen grain, containing the male gametes, lands on the stigma of a flower of the same species, it germinates. A pollen tube grows from the pollen grain & down to the flower's ovaries. The ovules are then fertilised & a seed is formed. Magnification: x200 at 6x6cm size.
- Photographer:
- Science Photo Library
- Copyright:
- DR JEREMY BURGESS/SCIENCE PHOTO LIBRARY
- Format:
- JPEG
- Size:
- 155KB
- Width:
- 800
- Height:
- 797
- Keywords:
- hollyhock, pollen, althaea, rosa, garden, hollyhock, pollen, of, botany, plant, sem, coloured, scanning, electron, micrograph, grain, allergen, allergy, cause, sneezing, causing, sneeze, nature, plants, reproduction, reproductive, pollen
- References for:
- pollinations
audio_toolbox_notes.txt · Last modified: 2016/01/13 17:48 by 127.0.0.1