An example of a grad-school level question?
Heat, light, and sound are all different forms of ___.

An example of a grad-school level question?
A person is 6 feet tall. Which of the following metric measurements is most near to 6 feet?

An example of a grad-school level question?
In which of the following ways are photosynthesis and cellular respiration alike?

An example of a grad-school level question?

What is the main function of the circulatory system?