All penguins are heterotrophs, including Macaroni penguins.
Heterotroph
autotroph
kingdom archaebacteria is both heterotroph and autotroph
A grasshopper is a heterotroph.
Heterotroph
heterotroph
The viper-fish is a heterotroph.
Heterotroph
heterotroph
Heterotroph
heterotroph
Heterotroph.
heterotroph
heterotroph.
Heterotroph.
Autotroph
autotroph