What are the key differences in roles and responsibilities between a professor and an adjunct in academia?

The key differences between a professor and an adjunct in academia lie in their roles and responsibilities. Professors typically have full-time positions with higher pay, job security, and more responsibilities such as research, curriculum development, and advising students. Adjuncts are part-time, with lower pay, less job security, and primarily focus on teaching courses without the additional responsibilities of full-time faculty.