An example of a grad-school level question?
Living organisms require energy for biological processes. Chemical energy in a plant cell is

An example of a grad-school level question?
Use The Periodic Table of the Elements and the information below to answer the question. Magnesium metal (Mg) is grayish-white in color and reacts actively with water. Fluorine (F2) is a greenish-yellow gas at room temperature and is a member of the halogen family. These two elements react to produce magnesium fluoride (MgF2), a chemical commonly used in making windows and lenses. How do the elements magnesium (Mg) and fluorine (F2) produce the compound magnesium fluoride (MgF2)?

An example of a grad-school level question?
Photosynthesis is the process that converts carbon dioxide and water into

An example of a grad-school level question?

A dragonfly develops through incomplete metamorphosis. Which stages does the dragonfly's life cycle include?