| Answer | Crossword Clue |
|---|---|
| hydrotropism | The growth or turning of plant roots toward or away from moisture |
| micrometers | A gauge that measures small distances or thicknesses between its two faces, one of which can be moved away from or toward the other by turning a screw with a fine thread |
| micrometer | A gauge that measures small distances or thicknesses between its two faces, one of which can be moved away from or toward the other by turning a screw with a fine thread |
| phototropism | The orientation of a plant or other organism in response to light, either toward the source of light (positive phototropism) or away from it (negative phototropism) |
