An example of a grad-school level question?
An eagle is a bird that reproduces by laying its eggs in a dry nest. Which animal lays its eggs in a place most similar to the eagle?

An example of a grad-school level question?
An organism, such as a nematode worm, may have only 1000 cells. It should be classified as being

An example of a grad-school level question?
Which of the following best describes an advantage of using a mass production manufacturing system instead of a custom manufacturing system?

An example of a grad-school level question?
What is significant about the discovery of water on Mars?