Question

Why is bacteria an essential part of the nitrogen cycle?

A: Bacteria use the nitrogen which prevents harm to other organisms.

B: Bacteria use the nitrogen that has been fixed by plants to create atmospheric nitrogen.

C: Bacteria are responsible for fixing nitrogen into usable forms for other organisms.

D: Bacteria, through assimilation, absorb nitrates or ammonium ions from the soil.

Answer 1

I think it is the first option

Answer 2

Some bacteria convert urea to ammonia. Some convert ammonia to nitrate ions which are then usable to plants and animals. And some convert nitrate to atmospheric nitrogen.
Based on these trues do you still think the first option is correct?

Answer 3

No

Answer 4

Which do you think it is?

Answer 5

B or C

Answer 6

I will second with you on C being the correct answer. When bacteria converts is is fixating.

Answer 7

I think C is the best answer because B is only partly correct

Answer 8

Or fixing using your teachers grammar :)

Answer 9

Only bacteria can fix nitrogen from the air. Since nitrogen is needed by all living things, their nitrogen-fixing activities are extremely important!

Answer 10

So it's B because it fixates the nitrogen form a solid to a gas. Right??

Answer 11

is it B Callliope?

Answer 12

No... what bacteria do is take nitrogen from the atmosphere (remember, there's a LOT of nitrogen in the atmosphere) and fix it into a form that plants can use. Some plants even have a symbiotic relationship with nitrogen-fixing bacteria that live in their roots so they (the plants) can get nitrogen more easily.

Answer 13

I get it!! It's C

Answer 14

Yep :)

Answer 15

Thanks