Biology path
Plant Lab
Choose a living-system case, predict the mechanism, test the model, then explain structure, function, and evidence.
Van Helmont weighed the soil, planted a willow, and waited five years. This bench runs in weeks: the plant's grams and the soil's grams stay on screen, water is metered as you give it, and every gained gram has to say where it came from. Commit a prediction before every season.
Choose a mission to open its prediction gate.