A foodchain shows the feeding relationships of organisms from successive trophic levels.
If by "ecosystem" you mean foodchain, then yes. Berries could start a foodchain, therefore are producers.
your moma
six
i love kfc
They are supposedly at the top.
THE TOP B#$# ahhahah
That thing eats Humans.
The bottom, since they are herbivores.
A foodchain.
The bottom of the chain
No, he does not.