The correct answer is B - homozygous
        
             
        
        
        
Most of the worlds fossil fuels are made up of Coal.
        
             
        
        
        
Answer:
No, because in mammals the male transfers his genes by fertilizing the female directly. In plants, there even could be, the plant fertilizing itself, but the pollen is transferred differently than the mammal. 
 
        
             
        
        
        
The correct answer is 4.) Eventually they become separate species
A process of formation of a new species from an existing species is called speciation.
When a single species changed into two or more separate species, is called speciation. Speciation can take place due to reproductive isolation.  In reproductive isolation, the separated species no longer can interbreed among themselves. This is happened due to mating differences, sterility or environmental barriers which finally results into the adaptive splitting into two species.
 
        
             
        
        
        
1. energy
2.thermal equilibrium
3.heat
4.thermal energy
5.thermal expansion 
6.temperature