Answer
The autotroph is the weed. The heterotrophs are the caterpillar, the bird, and the cat.
Work Step by Step
Autotrophs are organisms that make their own food; they do not need to consume other organisms to obtain energy. Plants are generally autotrophs. Heterotrophs must consume other organisms to survive; they cannot make their own food. Anything that eats something else is considered a heterotroph.
