D-a trait that helps an organism survive in its environment
        
             
        
        
        
Answer:
Consuming electricity and Transportation
Explanation:
Consuming electricity: Burning fossil fuels emits CO2, with coal releasing twice as much of the gas as petroleum. 
Transportation: Whether for business or pleasure, locomotion is the second largest source of U.S. CO2 emissions.
 
        
             
        
        
        
Answer:
D. the natural resources available in an ecosystem. 
Explanation:
Carrying capacity can be defined as a species' average population size in a particular habitat. The species population size is limited by environmental factors like adequate food, shelter, water, and mates. If these needs are not met, the population will decrease until the resource rebounds. 
 
        
             
        
        
        
They have the same sexual reproduction as any other species look up videos on youtube is the best advice i can give you