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Home Q & A Board Biology-Related Homework Help General Biology
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MapHarr MapHarr
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6 years ago
Four of the five statements below apply to the phosphorus cycle. Which one does not apply?
  a. Phosphorus cycles from land to water and back again.
  b. Phosphorus does not exist in a gaseous state.
  c. Dissolved phosphorus enters aquatic ecosystems from the atmosphere.
  d. Phosphorus will probably be depleted during the 21st century.
  e. Erosion from clear-cutting and agriculture accelerate phosphorus loss.

Question 2

The main steps of the nitrogen cycle are:a.
   nitrogen fixation, nitrification, assimilation, digestion, and denitrification.
  b. nitrigenation, nitrification, assimilation, ammonification, and denitrification.
  c. nitrogen fixation, nitrification, assimilation, ammonification, and dinitrification.
  d. nitrogen fixation, nitrification, assimilation, carbonation, and denitrification.
  e. nitrogen fixation, oxidation, assimilation, ammonification, and denitrification.
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dymasrajadymasraja
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