How do organisms differ in the ways they obtain the ways they obtain their energy source or food?

There are two different ways organisms obtain their energy source, or food. One way is with autotrophs and the other way is with heterotrophs. Autotrophs can make there own food. But on the other hand heterotrophs get their food from other organisms.

Explanation:

the answer is either c or d i think its d

imperial crisis leads to civil war.

roman forces withdraw from britain as goths attack rome.

odoacer topples romulus augustus

huns attack the empire and drive german peoples ahead of them.