Multiple Choice
Nitrogen fixation depends on the enzyme nitrogenase,which is produced by some ______.
A) Archaea
B) bacteria
C) eukaryotes
D) bacteria and Archaea but no eukaryotes
E) fungi and bacteria
Correct Answer:

Verified
Correct Answer:
Verified
Q44: Photoautotrophs are the only organisms that can
Q45: Which of the following is true about
Q46: In bacterial synthesis of polysaccharides,such as starch
Q47: The <span class="ql-formula" data-value="\beta"><span class="katex"><span
Q48: Which of the following is a source
Q50: Which pathway(s)is used to fix carbon dioxide?<br>A)Glycolysis<br>B)Reductive
Q51: The reduction of sulfate for use in
Q52: The bacterial cell wall component,_,is a long,polypeptide
Q53: Large numbers of small monomeric molecules join
Q54: Assimilation of organic phosphates from the surroundings