Which process describes nitrogen fixation?
question 19 options:

animals eat plants containing nitrogen and return it to the soil through urination

bacteria take nitrogen from the air and convert it to a form usable by plants

organisms die and are decomposed into ammonia in the soil

plants take nitrogen from the air and store it in their roots

bacteria take nitrogen from air and convert it to a form usable by plants

Bacteria take Nitrogen from air and convert it to a form usable by plants.

^w^

clumped distribution, because you'de have all of the population gathered in a relatively small are.

it's the most common because it provides protection and a mate for reproduction

example: humans, seeweed, cattles, etc.

helicase, i think thats it