Licence: Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
Credit: Blue-green algae with nitrogen fixing cells. Odra Noel. Source: Wellcome Collection.
Licence: Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
Credit: Blue-green algae with nitrogen fixing cells. Odra Noel. Source: Wellcome Collection.