Tell a funny joke?

in the mid-term exam of nursing college, there is a topic of choosing test questions: the structure of male reproductive organs is 1. Meat; 2, bones; 3. Sponge body. As a result, a female student chose 2, bones. The teacher scolded her angrily and said, "I didn't expect you to choose the wrong structure of the most basic male reproductive organs!" " "But my basis is not theory but practice!" Female students argued that