User talk:2409:4043:2E9F:8508:A618:3942:2DAF:49D5

February 2020
Hello, I'm Jake12195. I wanted to let you know that one or more of your recent contributions to Respiratory pigment have been undone because they did not appear constructive. If you would like to experiment, please use the sandbox. If you have any questions, you can ask for assistance at the help desk. Thanks. Jake (talk) 06:54, 26 February 2020 (UTC)
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Please do not add or change content, as you did at Respiratory pigment, without citing a reliable source. Please review the guidelines at Citing sources and take this opportunity to add references to the article. Thank you. userdude 08:16, 26 February 2020 (UTC)
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