| chlorophyll | 2 |
| pond | 0.65 |
| river | 0.35 |
| a state of engineered s… | 0.25 |
| blue text | 0.25 |
| produce oxygen | 0.63 |
| produce toxin | 0.57 |
| perform photosynthesis | 0.55 |
| use sunlight | 0.52 |
| perform oxygenic photos… | 0.51 |
| make food | 0.50 |
| grow in water | 0.49 |
| use carbon dioxide | 0.48 |
| obtain their energy | 0.48 |
| produce bmaa | 0.44 |
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| chlorophyll | 0.46 |
| great potential | 0.27 |
| circadian rhythm | 0.25 |
| early reducing atmosphe… | 0.25 |
| photosynthetic | 0.58 |
| ubiquitous | 0.50 |
| important | 0.44 |
| aquatic | 0.44 |
| ancient | 0.41 |
| unicellular | 0.39 |
| blue-green | 0.36 |
| unique | 0.35 |
| toxic | 0.34 |
| visible | 0.28 |
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| successive layers | 0.25 |
| responsible for increas… | 0.25 |
| treated as algae | 0.25 |
| identified as woronichi… | 0.25 |
| easy to manipulate | 0.16 |