No there is no selective pressure that confers an advantage to those who do taste it.
<h3>What is PTC?</h3>
Despite the fact that PTC isn't found in nature, tasting other bitter substances—many of which are toxins—that do occur naturally has a high correlation with taste sensitivity.
In order to defend themselves from being eaten, plants develop a range of harmful substances. Early humans developed the capacity to distinguish bitter tastes as a safeguard against ingesting dangerous plants. There are roughly 30 genes in humans that produce bitter taste receptors. People may taste a large variety of bitter substances because each receptor can interact with a number of different molecules.
Learn more about Taste with the help of the given link:
brainly.com/question/26220534
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According to http://www.ucsusa.org/global_warming/science_and_impacts/science/ozone-hole-and-gw-faq.html#.WQjhDfW...
  I think the answer is B.CFC
        
                    
             
        
        
        
Segments of DNA that contain the code for specific proteins are called genes
        
             
        
        
        
Answer:
Hello There!!
Explanation:
The answer is A. Cells make up tissues, which make up organs, which make up organ systems.
hope this helps,have a great day!!
~Pinky~