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Summary
| Description |
English: Early heterotrophs used Krebs cycle respiration, whether with scarce inorganic oxygen or nitrogen oxides; then oxygenic photosynthesis gave full independence of volcanic energy, over 2 Gya. |
| Date | |
| Source | Own work |
| Author | Ian Alexander |
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I, the copyright holder of this work, hereby publish it under the following license:
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 10:29, 12 June 2023 | | 960 × 720 (18 KB) | Chiswick Chap | Uploaded own work with UploadWizard |
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