Biologists collect data. If an experiment returns an unexpected result, they don't throw away the lab—they adjust the hypothesis. Your D is a data point saying: "Text-only study does not work for this brain."
In conclusion, a ‘D’ in biology is not a story of deficiency, but of dissonance. It is the sound of a curriculum clashing with a mind. Thanks to the imagenes work of Rachel Steele, I learned that failure is simply information: it tells you that your current method of translation is wrong. Whether you are learning about cells or cities, economics or emotions, the lesson is the same. Do not just memorize the word. Find the image. And if you get a ‘D’, do not erase it. Frame it. It might just be the first draft of your own masterpiece.