Answer:
about 150 million kilometers
Explanation:
 
        
             
        
        
        
In some cases yes, but most of the time no, all animals have to adapt to the ecosystem, if one thing is off the whole ecosystem fails, in hence not reaching homeostasis.
        
             
        
        
        
Answer:
Option C
Explanation:
If we consider Darwin's theory we would realize that the species which are not able to survive are unfit or weak. Thus, predators usually attack species that can be easily targeted. Hence, it this way predation leads to selective pressure on any species and hence leads to creation of a fit gene pool. The weak organisms are removed and more fit organism could mate among themselves to produce healthy offspring.  
  Hence, option C is correct
 
        
             
        
        
        
Answer is B in my opinion
        
             
        
        
        
It is the B the Arbor Vitae