Active transport require the cell to expand energy whilst Passive transport require no energy from the cell in active transport. 
Passive Transport moves molecules across membrane without the use of energy by the cell.
-Simple diffusion 
-Facilitated diffusion 
-Osmosis 
Active Transport uses energy (ATP) to move molecules across membrane.
-Protein pumps
-Exocytosis 
-Endocytosis (Phagocytosis & Pinocytosis)
 
        
             
        
        
        
Answer:
The condition in which an allele is dominant over another allele is dominance 
 
        
             
        
        
        
I believe the correct answer is A
        
             
        
        
        
Weather change, the air density l, the way the animals are acting and satlities