An example of a grad-school level question?
Amylase is a chemical that decomposes starch into maltose and dextrin. Which best describes the role of amylase in the human body?

An example of a grad-school level question?
The brown fur of the arctic hare turns white in winter. How does this color change most likely help the arctic hare?

An example of a grad-school level question?
Which sentence about the periodic table of elements is true?

An example of a grad-school level question?
Which scientific model could be used to predict the properties of an element?