What is MOST likely to be considered an achieved status? age

nationality

race

occupation

What restrictions do you think should be placed on studies with animal participants? explain

Awaiver of the requirement for documentation of informed consent may be granted when: the investigator has no convenient place to store signed consent forms separate from the research datathe only record linking the subject and the research is the consent document and the principal risk is a breach of confidentiality.potential subjects might find some of the research questions embarrassing, personal, or intrusivethe subjects are literate in their own language; however, they do not read, write, or speak english

Why couldn’t other societies utilize horses the same way the mongols could?