An example of a grad-school level question?
A decomposer is an organism that

An example of a grad-school level question?
When studying planetary data, Jackie found some similarities and differences among the planets that make up the solar system. Which generalization is true about the orbits of the major planets in the solar system?

An example of a grad-school level question?
Which is an example of water condensing?

An example of a grad-school level question?
Pepsin is an enzyme that acts in the stomach for protein digestion. Which of these is most likely the main role of pepsin in this metabolic reaction?