|---|---|

| Producers | Plants, algae, cyanobacteria |

| Primary consumers | Herbivores, such as deer, rabbits, and grasshoppers |

| Secondary consumers | Carnivores, such as lions, tigers, and bears |

| Tertiary consumers | Carnivores that eat other carnivores, such as eagles, hawks, and wolves |

| Quaternary consumers | Carnivores that eat other tertiary consumers, such as polar bears and killer whales |