How can historians use objects and documents in a museum to develop ideas about the past? They can read accounts of past events from the people who lived during that time.
They can look at photographs in exhibits and guess what might have happened next.
They can study tools that were used during the past to learn how to make ones just like them.
They can look at displays of ancient villages to recommend how land should be used today.

The idea that desirable traits can be bred into human beings and undesirable ones can be bred out is known as:

Which of the following methods could be considered a "best practice" in terms of informing respondents how their answers to an on-line survey about personal information will be protected? respondents are informed that investigators will try to keep their participation confidential; however, confidentiality cannot be assured.respondents are informed that a research assistant will transfer all the research data to a password-protected computer that is not connected to the internet, via a usb flashdrive. the computer is located in a research team member's office.the investigator uses the informed consent process to explain her institution's method for guaranteeing absolute confidentiality of research data.the investigator uses the informed consent process to explain how respondent data will be transmitted from the website to his encrypted database without ever recording respondents' ip addresses, but explains that on the internet confidentiality cannot be absolutely guaranteed.the investigator uses the informed consent process to explain how respondent data will be transmitted from the website to his encrypted database without ever recording respondents' ip addresses, but explains that on the internet confidentiality cannot be absolutely guaranteed

How many soultions does the system of equations have y= -6x + 330x + 5y = 15a.one b.twoc.infinity manyd.none