What effect does the use or disuse of a body part have, according to transformationalism?

According to transformationalism, the use or disuse of a body part can lead to heritable changes in that body part over generations. This theory suggests that characteristics acquired or diminished through an organism's interactions with its environment can be passed down to offspring. For example, if an animal frequently uses a specific limb, it may develop stronger or more adept muscles in that limb, and over time, these changes can potentially become ingrained in the genetic makeup of future generations. This perspective aligns with the broader concept of evolution and adaptation, emphasizing that the traits significantly influenced by environmental pressures can ultimately shape the evolutionary trajectory of a species.