Compared to land, the open oceans

All the interconnected feeding relationships in an ecosystem make up a food

The total amount of living tissue within a given trophic level is called the

Carbon cycles through the biosphere in all of the following processes EXCEPT

The movements of energy and nutrients through living systems are different because

When water is absorbed into the ground, this process is

Only about 10% of the energy in a trophic level is available to organisms in the next trophic level

Aquatic ecosystems can receive a large input of a limiting nutrient from the runoff from heavily fertilized fields

An organism that uses inorganic chemicals to make their own energy are

What are bacteria?

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