"I'm a motivated, confident and energetic person with the experience to positively contribute to the clinic."
This question is similar to 'tell us about yourself.' Answer this question with your 2-minute elevator speech that highlights your accomplishments and what sets you apart from the rest. Know what the job entails and what qualifications are needed. Confirm that you possess those qualifications and that you can offer more. Avoid 'hard working', 'reliable' or 'works well in a team' because anyone can claim that.
"My short-term goal is to find a position that will put me in a forward-moving company with solid performance and future projections. My long-term goal will depend on where the company goes. My plan is to move into a position of responsibility where I can lead a team."
This question is being asked to gain insight into your self-awareness and communication skills. Have a short term and long term goal in mind. Make all goals relevant to your career field. Be confident in your answers as they are your goals and no one else's.