Energy Flows Though Ecosystems.

Energy Flows Though Ecosystems.

1. Examples of primary producers are, and how to they get their energy?

Plants, algae, and some bacteria use solar energy to produce organic plant material through photosynthesis. 

2. The second trophic level is made up of what creatures, and from where do they get their energy?

Herbivores—animals that feed solely on plants—make up the second trophic level. 

3. Why do predators make up the third trophic level?

Because predators eat herbivores and they comprise the third trophic level.