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This quote is just one of 3 total Gerta Keller quotes in our collection. Gerta Keller is known for saying 'These single-celled organisms are extremely sensitive to environmental changes.' as well as some of the following quotes.
This quote is just one of 3 total Gerta Keller quotes in our collection. Gerta Keller is known for saying 'These single-celled organisms are extremely sensitive to environmental changes.' as well as some of the following quotes.