An ecosystem creates:

Identify the basic components of an ecosystem.

Omnivores feed on members of which trophic levels?

If less light falls on the pond's surface,what is the most likely consequence for the fish population?

In the dry weight of living beings,$A$ $\%$ carbon is present. In the oceans,$B$ $\%$ of the total global carbon is dissolved. The total amount of carbon in the atmosphere is $C$ $\%$ of the total global carbon. Identify the correct values for $A, B,$ and $C$.

Which one of the following is not a functional unit of an ecosystem?