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.
You need a doctorate to become a Psychologist. This is generally about 10-12 of school total (4 for Bachelor's degree, 5-6 for Masters and PhD). However, you can become a licensed counselor with only a Master's degree (1-2 years after 4 years of college). This is a better route for most people who want to work with clients in a clinical setting.