AP Environmental Science / Unit 1: The Living World: Ecosystems
1.9 Trophic Levels
Notes
- Producers (autotrophs) → primary consumers (herbivores) → secondary → tertiary consumers.
- Decomposers and detritivores break down dead material at every level.
Practice
A hawk that eats snakes that eat mice is a:
Mouse (1st), snake (2nd), hawk (3rd).
Producers make food by:
Autotrophs.
Fungi that break down dead logs are:
They recycle nutrients.
Ready for more? Take the Unit 1 test.