Which of the following biological theories of aging states that people age because their cells' normal metabolism produces unstable oxygen molecules? a. cellular clock theoryb. free-radical theoryc. telomerase-injection theoryd. hormonal stress theory

Which of the following was not a way is not an example of new opportunities for women in the late 1800's?

Aresearcher conducting behavioral research collects individually identifiable sensitive information about illicit drug use and other illegal behaviors by surveying college students. one of the subjects is in an automobile accident two weeks after participating in the research study. is this an example of an unanticipated problem that requires reporting to the irb? yes, this must be reported because it was not listed as a risk of study participation in the consent form (was unexpected) and the subject experienced harm.yes, this must be reported because it involved a subject in a research study and it’s up to the irb to determine if it was related to participation.no, this does not need to be reported because it was assessed by the researcher as unrelated to the research study.no, this does not need to be reported to the irb since the researcher reported it to the sponsor of the study.

Epicureanism advocated reason and duty. select the best answer from the choices provided t f