An example of a grad-school level question?
Which technique will researchers studying the inheritance patterns of various disorders most likely use?

An example of a grad-school level question?
Timber companies can best manage the number of trees in forests by

An example of a grad-school level question?
Which of the following is a reason life in the outermost planets is less likely than life on planets nearer the Sun?

An example of a grad-school level question?
A device that converts light energy into electricity used in many handheld calculators is a