Answer:
Staple foods vary from place to place, but typically they are inexpensive or readily available foods that supply one or more of the three organic macronutrients needed for survival and health: carbohydrates, proteins, and fats. Typical examples of staples include tuber- or root-crops, grains, legumes, and other seeds.
The type of research carried out by the professor at the University of Arizona is called Primary Research while the research which references that is called Secondary Research.
<h3>What is Primary Research?</h3>
This refers to research wherein data is collected directly from the sample as opposed to secondary research which dwells on primary research that has already been carried out by others.
See the link below for more about Primary and Secondary Research:
brainly.com/question/13672588
Answer:
i don't know the answer but have a great day