Answer:
are almost universal among all living things
Explanation:
 
        
             
        
        
        
Answer:Light coming from the fish refracts (changes direction) when it hits the surface. A person above the water sees the apparent position of the fish closer to the surface than the real position of the fish. 
Explanation: refraction of light between air and water
 
        
             
        
        
        
The powerhouse is the mitochondria
        
                    
             
        
        
        
It is an example of uneasiness. It is because being anxious is a way of having to be worried to a specific thing or problem in which when a particular person is worried, he or she is likely feeling anxious as he or she seeks for something that will relieve his or her worries.