Step 1: Understanding the chart for energy flow.
In an ecosystem, energy flows from primary producers (plants) to herbivores (primary consumers) and then to secondary consumers (carnivores). The missing terms are:
- Primary Producers: Plants, such as grass, which produce energy through photosynthesis.
- Secondary Consumers: Carnivores like tigers, which consume herbivores such as deer.
Step 2: Conclusion.
The chart is completed as follows:
- Primary Producers: Grass
- Herbivores: Deer
- Secondary Consumers: Tiger