The tick uses the dog for two reasons. 1.It uses the dog as a source of food. 2.It also uses a dog for means of transportation from one place too another. And so the dog gains nothing
        
                    
             
        
        
        
Have a lot of mitochondria so that more respiration providing muscles with more energy for muscle contraction 
Hope it’s useful
        
             
        
        
        
Answer: Dark energy and dark matter describe proposed solutions to as yet unresolved gravitational phenomena. So far as we know, the two are distinct. Dark matter originates from our efforts to explain the observed mismatch between the gravitational mass and the luminous mass of galaxies and clusters of galaxies.
 
        
             
        
        
        
The correct answer is true hope this helps! ^0^ :)