![](https://nthumb.tpgimages.com/mid2_com_img/1339/31886/TOP29874915.jpg)
Coloured scanning electron micrograph (SEM) of a Tetracyclus cruciformis Andrews diatom, characterized by its cruciform (cross-shaped) morphology. They are found in freshwater habitats. Diatoms contribute significantly to the oxygen in the atmosphere and are a fundamental link in the aquatic food chain. They are among the most diverse species on earth. Estimates of the number of diatom species range from 20,000 to 2 million. Scientists are discovering new species every year. Magnification: x1250 when printed 10 centimetres wide.
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Creative#:
TOP29874915
Source:
達志影像
Authorization Type:
RM
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須由TPG 完整授權
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N/A
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N/A
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No
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