No, the Oak tree is an "Autotroph" (or producer) makes its own food from Chemical or light energies.
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Heterotroph
autotroph
No, a sumac tree is not a heterotroph; it is a autotroph. As a plant, a sumac tree produces its own food through photosynthesis, using sunlight, carbon dioxide, and water to create energy-rich organic compounds. Heterotrophs, on the other hand, obtain their nutrients by consuming other organisms.
heterotroph
A grasshopper is a heterotroph.
heterotroph
Heterotroph.
Millipedes are heterotrophs .
Heterotroph.
The viper-fish is a heterotroph.
heterotroph
is is scabies heterotroph