material_art_science_experiments
Media Manager
Namespaces
Choose namespace
Media Files
Files in made_eu:bioplastics_03
- agar_test.jpg
- 640×480
- 2016/05/09 14:44
- 74.9 KB
- coffee_ground.jpg
- 480×640
- 2016/05/09 14:44
- 74.8 KB
- gelatine_and_coffee.jpg
- 480×640
- 2016/05/09 14:44
- 90.4 KB
- img_9568.jpg
- 640×220
- 2016/05/08 20:08
- 31 KB
- img_9573.jpg
- 480×640
- 2016/05/08 20:09
- 57 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
material_art_science_experiments.txt · Last modified: 2016/02/06 20:57 by ami