Answer:
One key way by which species evolve over time in response to changes in environmental conditions is adaptation by natural selection acting over generations. Characteristics that aid in effective survival and reproduction in the new environment grow more prevalent, while those that do not become less prevalent.
Explanation:
 
        
             
        
        
        
Natural resource management deals with managing the way in which people and natural landscapes interact.
        
             
        
        
        
Answer:
Black Mice
Explanation:
A term that refers to the survival of only those organisms best able (fittest) to obtain and utilize resources, resulting in the evolution of organisms that are best adapted to the environment.