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Choice
Nitrogen cycles between the biotic and abiotic factors in an ecosystem.
Which of the following organisms is primarily responsible for changing
nitrogen into a usable form?
Nitrogen
Free nitrogen
Consumers eat nitrogen
in the air
compounds in plants
is fixed
Some
free nitrogen
into the air
Decomposers
break down
organic matter

A.grasses growing in rich soil
B.bacteria on the roots of a soybean plant
C.cows feeding on grass and other plants
D.flowers of clover plants

Respuesta :

gipsonrylie

Answer:

B. Bacteria on the roots of a soybean plant

Explanation:

Nitrogen is converted from atmospheric nitrogen (N2) into usable forms, such as NO2-, in a process known as fixation. The majority of nitrogen is fixed by bacteria, most of which are symbiotic with plants.

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