Energy and Biogeochemical Cycles

Front

What nutrient is not cycled through the atmosphere?

Back

Phosphorous.

Front

How do animals obtain nitrogen?

Back

By eating other organisms.

Front

What is a Biogeochemical Cycle?

Back

The ways in which an element moves in the Biosphere.

Front

What process removes carbon from the atmosphere?

Back

Photosynthesis.

Front

During which phase of the nitrogen cycle are nitrates taken up into plant roots?

Back

Assimilation.

Front

What are the main components of the carbon cycle?

Back

Photosynthesis, respiration, decomposition, and combustion.

Front

What role do decomposers play in biogeochemical cycles?

Back

They break down dead organic matter, returning nutrients to the soil.

Front

What is the significance of the nitrogen cycle for ecosystems?

Back

It is essential for the synthesis of amino acids and nucleic acids, which are vital for life.

Front

What is the process by which nitrogen gas is converted into ammonia?

Back

Nitrogen fixation.

Front

What is the primary source of phosphorus in ecosystems?

Back

Weathering of rocks.