4.3 Vocab Flashcards
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
2
Q
Nutrient
A
Chemical substance that an organism need to sustain life
3
Q
Nitrogen fixation
A
Process of converting nitrogen gas into nitrogen compounds that plants can absorb and use
4
Q
Denitrification
A
Process by which bacteria convert nitrates into nitrogen gas
5
Q
Limiting nutrient
A
Single essential nutrient that limits productivity in an ecosystem
