An example of a grad-school level question?
Rheumatoid arthritis is a disease that occurs when the body attacks its own tissues. Which body system becomes disordered first?

An example of a grad-school level question?
The smallest particle of an element is

An example of a grad-school level question?
Which observation of a plant supports the inference that photosynthesis can take place?

An example of a grad-school level question?
Students are studying the classifications of stars and they learned that the majority of stars are similar to the Sun. What can the students conclude knowing that most of the stars in the galaxy are like the Sun?