Answer:
The correct answer is - urea.
Explanation:
In our body, to produce energy or produce glucose our body breaks the amino acids, it gets from proteins mainly. These amino acids are mainly breakdown into amine groups.
The human body has a unique ability to pack ammonia(amine group) by converting it to urea and incorporated and produced by the liver using 2 molecules of ammonia (NH3) and 1 molecule of carbon dioxide (CO2).  This incorporated urea is then secreted from the liver and incorporated into the urine in the kidney for further process.
 
        
             
        
        
        
<h2>What is the atmosphere attracted by earth</h2>
<h3>                                         Let's begin.</h3>
Our Earths magnetic field may be to blame.
<em>Is there anything further to your question?</em>
Let me know!
 
        
        
        
Answer:
during DNA replication
Explanation:
During DNA synthesis, when an incorrect nucleotide gets inserted in daughter strand of DNA, DNA polymerase goes back by one nucleotide pair, excises the mismatched nucleotide and repairs error. Thus, the DNA polymerase checks for mutations at the time of DNA replication
 
        
             
        
        
        
Yes - diffusion is a broad term that may be applied to a vast number of substances and is not limited to liquids ( gases can diffuse too). osmosis refers to the diffusion of liquid water down the water potential gradient
        
             
        
        
        
Cells need water to survive for a dispose of waste