Critical Thinking Diagram Worksheet
1. Identify a food chain that consists of ONLY a producer, primary consumer, and secondary consumer.
2. Identify a food chain that consists of ONLY a producer, primary consumer, secondary consumer, and a
tertiary consumer.
3. Identify THREE herbivores
4. Identify THREE carnivores
5. Add decomposers to the food web by writing the term decomposers in the correct place and adding
arrows as appropriate.
6. What do the arrows indicate about the flow of energy in the community?
Classify the organisms from the food chain on the previous page into their correct trophic level. Depending
on which web they are a part of, they may fit into more than one level!
PRODUCER (2)
PRIMARY CONSUMER (6)
SECONDARY CONSUMER (5)
TERTIARY CONSUMER (3)