A gazelle is a heterotroph. That means it must eat other things, such as plants, in order to get the chemicals it needs for life. Autotrophs, on the other hand, manufacture all the chemicals they need from the environment, usually by photosynthesis or chemosynthesis.
heterotroph
The viper-fish is a heterotroph.
heterotroph
Heterotroph
Heterotroph.
heterotroph
heterotroph.
Heterotroph.
Heterotroph
heterotroph
Autotroph
there autotroph