Colony Characteristics of Escherichia coli (E. coli) is a Gram-negative, facultatively anaerobic, rod-shaped, coliform bacterium of the genus Escherichia that is commonly found in the lower intestine. stock photo...

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What's a royalty-free license?

Royalty-free licenses let you pay once to use copyrighted images and video clips in personal and commercial projects on an ongoing basis without requiring additional payments each time you use that content. It's a win-win, and it's why everything on iStock is only available royalty-free — including all Agar Jelly images and footage.

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