Question

All the goldfish in an aquarium would represent what ecological level? a:biosphere b: community c: ecosystem d:population. ​

Answer 1

Population

because it's not a community because a community contains living and no living things.

it's not a biosphere because it's a biome with all of its consists.

it's not an ecosystem, because an ecosystem represents more than one community.

have a nice day

Answer 2

ecosystem..........