models need to be changed when ________. a. they are based on experimental data b. scientific understanding…

models need to be changed when ________. a. they are based on experimental data b. scientific understanding changes c. they represent a phenomenon d. they are designed to answer a question please select the best answer from the choices provided
Answer
Brief Explanations:
Scientific models are representations of phenomena. As scientific understanding evolves with new discoveries and data, models need to be updated to accurately reflect the current knowledge. Being based on experimental data (a) is normal and not a reason for change. Representing a phenomenon (c) is their purpose and not a cause for change. Being designed to answer a question (d) is also not a reason for change. Change occurs when understanding changes.
Answer:
B. scientific understanding changes