We now know that they have unique physical, chemical, and genetic traits that set them apart from plants and other eukaryotes. For example, the cell walls of fungi are made of chitin, not cellulose. Also, fungi absorb nutrients from other organisms, whereas plants make their own food.
 
        
                    
             
        
        
        
Change through natural selection 
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Answer:
B. urbanization
Explanation:
In urbanizing stage, death rate quickly declined because of the improvements in agricultural aspect which goes down to food supplies, health care delivery, medicine improvements, and even  the investments in sanitation and infrastructure which contributes to the increasing life expectancy of the people and lesser diseases which cause deaths.  Though birth rates remain almost the same, but young population continues to grow because of the low death rate.
 
        
             
        
        
        
The somatosensory cortex located at the parietal lobe.