Blue anemone (Anemone apennina) pollen grain, coloured scanning electron micrograph (SEM). Pollen grains, containing the male sex cells (gametes), are reproductive structures produced by the male parts of flowering plants. The structure shown is the hard outer casing (exine) that protects the gametes during transit between flowers. Magnification: x3410 when printed at 10 centimetres across. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / UNIVERSITY OF ABERDEEN / Kevin Mackenzie |
Bildgröße: | 3425 px × 2569 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |