Biology question? Really urgent?

Question

"Starting with the biosphere, list life's levels of organization the define the scope of biology from largest to smallest."

I cant find the answer to that anywhere.

Answer 1

Biosphere is the part of the Earth where life exists.  

After that, there's an ecosystem, which is all of the life and non-living things in an area that interact with one another.  

Then a community, which is all of the living things in an area.

Then population, which is all members of a single species in an area.  

Then organism, which is a single member of a species.