Hi @biologist

Thank you for using the steemstem tag.

Please note that some of the images you use have copyright issues and I would recommend that you replace them.

You can read here how to find free-to-use, high quality images for your posts.

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_{Steemstem is a community aiming to support posts about Science, Technology, Engineering and Mathematics.
We welcome new members interested about STEM on our discord channel}

Katerina