A producer creates energy, primary consumers eat producers, secondary consumers then eat the primary consumers, and the tertiary consumers eat secondary consumers. Producers produce or create energy using either energy from the sun (photosynthesis) or chemical energy (chemosynthesis).
How to Become a Child Psychologist. A child psychologist has a doctorate degree in psychology (some positions only require a Masters degree), with a special interest in working with children. In graduate school you can get a master's degree (either the Master of Arts or Master of Science degree) in psychology concentrating in child psychology and child development.
Most employers require child life specialists to have a minimum of a bachelor's degree. Some colleges and universities offer programs in child life, but other acceptable majors include child and family studies, psychology, child development, recreational therapy and early childhood education.