Answer:
Explanation:
To do proper research and prepare for it
 
        
             
        
        
        
Answer:
RNA world hypothesis.
Explanation:
RNA is present as the genetic material in some viruses only. RNA is produced from the template DNA by the process of transcription and helps in the protein gene expression.
According to RNA world hypothesis, RNA is considered to be the first genetic material as it has the ability to store the genetic material. The oxyribose sugar makes the RNA more reactive than the DNA molecule. The RNA also has the ability to work enzyme known as ribozyme. Hence, RNA has the ability to store the information and acts as catalyst.
Thus, the answer is RNA world hypothesis.
 
        
             
        
        
        
Depends on frequent investigation
        
             
        
        
        
selfish
The id is the chaotic part of the personality. It  includes human's basic, instinctual drives.
The ego is the mediator between the id and reality. It
compensates the id's impulsiveness with reality. It delays gratification and
enables the person to function effectively.
The imbalance of these interacting powers will cause a
disruption in the personality.