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

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.

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the right answer is a. skin cells forming from sunlight.

the liver is an organ endowed with a fantastic ability to regenerate

. thus, if a hepatectomy (ablation) of 70% of the hepatic mass is performed in the rat, there is complete recovery in 7 to 10 days.

prokaryotes are beings that have existed since the existence of life on earth, and do not come from another realm.

ribosomes are organelles that exist naturally in eukaryotes, either in free form or attached to the endoplasmic reticulum.

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