Answer:
The geocentric model says that the earth is at the center of the cosmos or universe, and the planets, the sun and the moon, and the stars circles around it. The early heliocentric models consider the sun as the center, and the planets revolve around the sun.
Explanation:
 
        
             
        
        
        
Answer:
One
Explanation:
In a controlled experiment only one variable is changed at a time, while the others are kept the same/controlled so changes can be observed and a causation can be determined.
 
        
             
        
        
        
Through the blood flow and veins in your body
        
                    
             
        
        
        
A) agonist is the correct answer
        
                    
             
        
        
        
Answer:
lower power= 20 x 10= 200x
higher power= 20 x 43= 860x