1a. Examples of primary produce, and (b.) how do they get their energy?
Organism that produce organic compounds from atmospheric or aquatic carbon dioxide and photosynthesis
2a. The second trophic level is made up of what creatures, and (b.) from where do they get their energy?
Herbivores and they plant life underwater
3. Why do predators make up the third trophic level?
Large predators are present, they represent still higher levels.
http://static.ddmcdn.com/gif/great-white-shark-1.jpg
http://www.reefresilience.org/images/C3a1_parrotfish.png
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