4.3 Vocab Flashcards

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1
Q

Biogeochemical cycle

A

Process in which elements, chemical compounds, and other forms of matter are passed from one organism to another and from one part of the biosphere to another

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2
Q

Nutrient

A

Chemical substance that an organism need to sustain life

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3
Q

Nitrogen fixation

A

Process of converting nitrogen gas into nitrogen compounds that plants can absorb and use

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4
Q

Denitrification

A

Process by which bacteria convert nitrates into nitrogen gas

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5
Q

Limiting nutrient

A

Single essential nutrient that limits productivity in an ecosystem

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