Answer: Photosynthesis
Explanation: Photosynthesis removes CO2 from the atmosphere and replaces it with O2. Respiration takes O2 from the atmosphere and replaces it with CO2.
 
        
                    
             
        
        
        
Answer:
The correct option is B. Jean Charcot was the French neuroscientist that helped legitimatize the practice of hypnosis. 
Explanation:
Hypnosis can be described as a state in which a person is numb or kind of asleep but is strongly focused to respond to questions being asked by the psychologist. This technique is used by psychologists for the treatment of psychological disorders. Hypnosis has also been known to serve as a therapy for pain management. 
Jean Charcot was a French scientist that made up his name by identifying a number of neurological disorders. He is also known to legitimatize the practice of hypnosis for psychological purposes.
 
        
                    
             
        
        
        
No. It's true for AUTOTROPHES
        
             
        
        
        
Answer
          Crossing over is the phenomenon in which exchange of chromtids occur between non sister chromatids  and result into recombinant chromatids, which is an important tool for evolution and bring about genetic changes in offsprings as compare to their parents. 
No crossing over
                 If no crossing over occurs, it means no exchange of chromatids between non sister chromatids of homologous chromosomes, then no recombinant chromatids will be formed.
Result
         At the end of meiosis II, when four haploid cells are formed, all these cell will contain similar chromosomes as present in parent. Thus chromosomes are non recombinant because of no crossing over.