The hypotheses are complex and may be changed when new information is available or new technologies are developed.
The correct answer is theories. Theories are complex and can be modified or refined as new information becomes available or new technologies are developed. Hypotheses, on the other hand, are initial explanations or predictions that need to be tested, while laws are well-established principles or descriptions of natural phenomena that have been extensively confirmed through observations and experiments. Procedures refer to a series of steps followed to accomplish a particular task or achieve a specific goal.
