The Premack principle was derived from a study of Cebus monkeys by Professor David Premack, but it has explanatory and predictive power when applied to humans, and it has been…

Indirect characterization is the process by which the writer shows the character’s personality through speech, actions, and appearance. When you watch a movie or television show, you can usually gather…

Concentration Gradient | What Is A Concentration Gradient The formal definition of a concentration gradient is the process of particles, which are sometimes called solutes, moving through a solution or…

Centripetal Force Equation Centripetal Force Equation: Do you remember riding on the merry-go-round as a kid? Did you ever stand at the very edge of the merry-go-round and hold on…

Learn how to state your preferences in Spanish with the verb ‘preferir’ conjugation (to prefer). In this lesson we take a close look at its structure and conjugation in the…

In geometry, a vertex form is a point where two or more curves, lines, or edges meet. As a consequence of this definition, the point where two lines meet to…