Answer:
In biology, a molecular clock can be described as a method to determine the time for the divergence of species which occurred by the process of evolution. 
Explanation:
The mutation rates of different molecules are used in this method. The mutation rates for DNA sequences and amino acid sequences are usually considered. The molecular clock can be used to compare and estimate the splitting of a lineage. For example, by this method, one can interpret when the chimpanzees and humans diverged from each other.
Hope this helped!
-Toshino
 
        
             
        
        
        
Let's eliminate this one by one.
Animal cell does not have walls. So we can eliminate The third option.
Plant cells does have walls, but they also have well-defined nucleus. So we can eliminate the second option
The leave : A. Prokaryotic as the answer
hope this helps
        
                    
             
        
        
        
Answer:
Termites have cellulose-digesting protists in their guts.
Explanation:
Termites are able to access nutrients contained in cellulose due to their mutualistic association with some cellulose-digesting protists such as <em>Trichonympha</em> and M<em>ixotricha</em>. The protists produce cellulase in addition to other glycolytic enzymes that work together to convert cellulose to malate.
The malate produced is further metabolized to produce  , hydrogen, acetate and energy in the form of ATP.
, hydrogen, acetate and energy in the form of ATP.
The protists get sheltered in the termite's gut in return.
 
        
             
        
        
        
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❖ After the s phase in interphase, the G2 phase occurs.
In the G2 phase growth and final preparation for mitosis occurs.
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A. xx
b.x+x+
c.x0x0
d.x+x0
e. x0y