Concentration is an important attribute when studying. If you concentrate, you can focus on what you need to do and eliminate outside distractions. In order to concentrate better, it helps to have a set place to study. Keep a study routine; know what time of day is best for what kind of studying. When you study, go ahead and focus your mind on the subject at hand. Look over notes and decide what you need to accomplish.

It may help to know that you will reward yourself if you concentrate. Think about a special treat at the end of a study session. Don’t study one topic for hours. Vary the routine and the subject matter. Be studying a bit and allowing the information to digest, you may understand it better. You need to schedule breaks for study time. Give yourself a chance to move around. Many people worry about studying, so it may be a good idea for you to schedule worry time for half an hour a day. Think about your problems then. It is amazing how scheduling time for worry decreases worry during the day.
Concentration is the ability to direct your thinking. The art or practice of concentration,no matter if studying biology or playing pool, is to focus on the task at hand and eliminate distraction. We all have the ability to concentrate -- sometimes, but at times we are "lost" or distracted so now onwards practice concentrating on one subject for sometime.