| A | B |
| producer/autotroph | an organism that makes its own food (ex. plant) |
| carnivore | an animal that feeds on other animals |
| consumer/heterotroph | an organism that feeds on other organisms (no specific type of organism) |
| decomposer | breaks down dead organisms and waste, recylcling nutrients back to the environment (ex bacteria or fungus) |
| herbivore | an animal that feeds only on plants (ex. deer) |
| predator | animal that kills and eats other animals |
| prey | organism that is killed and eaten by another animal |
| scavenger | organism that feeds on dead or decaying organisms (ex. vulture) |