D. Darwin's theory of natural selection shows that organisms evolve based on which one's survive the best and thrive. 
        
                    
             
        
        
        
After the action potential passes through an axon, gated potassium channels open and allows potassium ions to flow out. 
        
             
        
        
        
Answer: Microorganism activity affects soil acidity and the amount of organic matter in soil. It also affects the nutrient and mineral levels in soil as well as soil structure.
Explanation:
 
        
             
        
        
        
Answer:
Explanation:
Lower frequency for both dewlap extension and pushups. In the presence of predators and females an increase in the dewlap frequency and pushups is expected as a result of defense and breeding mechanisms mixed while in the second situation we have just breeding mechanisms involved
 
        
             
        
        
        
Answer:
The gene for human insulin is inserted into the gap in the plasmid. this is done through the use of restriction enzymes and ligase to insert and close the plasmid. This plasmid is now genetically modified. The genetically modified plasmid is introduced into a new bacteria or yeast cell. The more the cells divide, the more insulin is produced as bacteria divides into two identical daughter cells like in mitosis.
Explanation: