I think the answer is frequency if I remember correctly
Correct answer: D) From bacteria living in their roots
Nitrogen is an essential plant nutrients, but it is metabolically unavailable to higher plants and animals. It is available to some species of microorganism by biological nitrogen fixation in which nitrogen is converted to ammonia with the help of enzyme dinitrogenase.
The process of breaking apart the two atoms in a nitrogen molecule is called nitrogen fixation. Plant obtain the nitrogen they need from the soil which is already fixed by the bacteria and archae.
Example: <em>Azobacter</em><em>,</em> Nostac
Answer:
You need to quickly determine if any bacteria are growing in your new broth media. The fastest way to check for growth would be to use: a chemostat.
Explanation:
Because our bodies work to fight off unknown substances like bacteria
