Which of these is an advantage of the system of checks and balances?

Which of the following is a personal responsibilty

Jonathan purchases a comic book over the phone. the store does not promise a particular time in which the comic book will be shipped to jonathan. after 40 days, the comic book has not been shipped. do state or federal laws protect jonathan's rights in this case? what is the name of the law? select the best answer from the choices provided. a. federal law; the implied warranty of merchantability b. state law; the implied warranty of merchantability c. federal law; the mail and telephone order rule d. state law; the mail and telephone order rule

Which term describes a possible explanation of, or answer to, a scientific question that is based on prior knowledge or research and that is testable?