Energy Flows Through Ecosystems

1. A.) Some examples of primary producers are phytoplankton, plants, algae, and certain bacteria.

B.) They are using solar energy to produce organic plant material through photosynthesis.

2. A.) The second tropic level is made up of herbivores.

B.) They get their energy source from eating plants.

3. Predators make up the third tropic level because they eat second tropic level animals and other small predators.