Answer:
Nitrogen-fixing bacteria is capable pf transforming nitrogen present in the atmosphere into fixed nitrogen i.e. usable for plants.
hope it helps!
 
        
                    
             
        
        
        
Answer:
The correct answer is option E. "direct repair using photolyase has removed many of the pyrimidine dimers from the DNA in an error-free manner, so there are fewer lesions for SOS repair to process".
Explanation:
Photolyase is a type of enzyme that catalyses DNA repair from damage caused by exposure to ultraviolet light. Photolyase requires activation by exposure visible light, particularly from the violet end of the visible spectrum. If the Petri plates of the bacteria exposed to UV are located in an incubator that is closely at a large sunny windows, it is very likely that the bacteria is performing direct DNA repair using its photolyase enzymes.
 
        
             
        
        
        
Answer:
C) Practicing good scientific method and practices.
Explanation:
 The text states, "repeating the experiment multiple times," as well as other preparations that a good scientist uses. 
 Doing something multiple times over is a good sign of a good scientific method.
  Taking careful measurements, having several researchers run the same experiment, and only testing one variable at a time are all good practices that a scientist should use.
 <em> </em><em><u>The</u></em><em><u> </u></em><em><u>correct</u></em><em><u> </u></em><em><u>answer</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>C</u></em><em><u>)</u></em><em><u>.</u></em>
 
        
                    
             
        
        
        
Answer:
Digestion is the process of breakdown of the large food particles into the small substances and absorbed by the body. The digestive enzymes and digestive juices are required for the digestion.
The Marisol digestive system is not working although she swallow her food. This may affect her exercise as the cells are not able to get work. The food particles are not broken down and absorbed by the cells, This causes the energy deficiency in her cells and she is not able to do normal physical work properly.