C) ribosomes and mitochondria 
        
                    
             
        
        
        
The answer is D. A, B, and C all use photosynthesis, and make their own energy. A cougar relies on killing other animals to get energy. I hope this helps!
        
             
        
        
        
It is an essential element for plant life, but when there is too much of it in water, it can speed up eutrophication (a reduction in dissolved oxygen in water bodies caused by an increase of mineral and organic nutrients) of rivers and lakes. Soil erosion is a major contributor of phosphorus to streams.
        
             
        
        
        
Answer:
yes
Explanation:
most common pattern being found in 65 to 70 percent of all fingerprints
 
        
             
        
        
        
Answer:The net force is the sum of all the forces acted upon an object. The direction of force depends on which side you are taking as a positive and negative force. If the force of 22 newtons is positive and the force of 13 newtons is negative, they are actng on the object on different directions, thus in order to get the net force, we just sum them up.
 newtons
The net force is +9 Newtons.
Explanation
: