Arrange these steps in the nitrogen cycle in the correct order to explain how nitrogen from the atmosphere cycles through the other spheres o Earth.
biosphere
dead organic mater
nitrogen fixation
denitrification
ammonification
!
nitrification - yielding nitrate
nitrification - yielding nitrite
1

The correct order is:

1) dead organic matter

2) ammonification

3) nitrification – yielding nitrite

4) nitrification yielding nitrate

5) denitrification  

6) biosphere

7) Fixation

Explanation:

Decomposers take nitrogen from the tissues and change into ammonia or salts of ammonia, NH₃, and NH₄ (Ammonification).   At that point, by nitrification, these structures are prepared and changed first into nitrite NO₂ and afterward into nitrate NO₃.   Autotroph creatures take nitrogen from the dirt as nitrate, NO₃. Plants reduced this oxidated nitrogen, NO₃, to the amino group by the assimilation process.  

Along these lines, organisms take nitrogen from plants as an amino group, NH₂.  Other microbes use nitrate NO₃ and by denitrification produce atmospheric N₂ and back it to the environment.   From the climate, some other microorganisms focus N₂ in the plants' underlying foundations or in the dirt.

1) gene flow

- it is described as the transfer of genes from one population to another population so that frequency of gene is increased.

-a zebra migrates to join a different herd of zebras.

2) natural selection

- a mechanism of evolutionary change in which individuals with advantageous traits survive and reproduce whereas the others ( those that can not adapt) eliminate from the population.

-competition for sunlight leads to taller trees.

3) mutation

- permanent change in the nucleotide sequence of dna ( genetic material) that could have harmful or useful consequences.

-the dna of a snake changes to make its venom stronger.

4) genetic drift - it is a random phenomenon ( that occurs by chance such as fire) that results in change in the gene frequency in a small population.    

-a grassfire randomly sweeps through a population of buffalo and kills most of the animals.

explanation: