<span>Polymerization is the answerr</span>
To keep organelles in place
If I remember correctly, I believe the answer is a) An increase in the use of buses and trains decreases the effects of acid precipitation.
The decrease of using buses and trains would decrease the effects of acid precipitation.
Every other option seemed right to me!
~ Good luck!
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
Neither the experimenter nor the people in the experiment know what the experiment is about