They were about 16 to 100 years old
I can at least tell you it isn't
The territory was divided into independent city-states. ( I got a zero.)
Nor the flat land, as I remember the Aztec farmed from "Floating gardens."
The Aztec traded everything. So, If it's supposed to fit all three of them, it's already out for that option. (And all of them traded.)
I think, It'd have to be the last option left then, Corn being an important crop. <u><em>It should be.</em></u>
Answer:
Ideas such as eugenics and cloning.
Explanation:
This are controversial because would be tried in humans and would open up not only many moral and ethical debates but also in it's aplications, which cases, at which people, how, etc.
This represents the source of research ideas called classroom lecture.
There are several sources which can inspire and help someone to develop a research question. Some of them are theory, everyday occurrence, serendipity and past research. In this case, Whitney was taught about the bystander effect in her social psychology course and she was inspired to undertake an undergraduate research project on this subject.