Carbon cycle is  process that shows the exchnge of carbon in the living and atmospheric system. Carbon cycle starts with the giving off of carbon dioxide from nimals, accumulation of co2 of plants, contribution of organic matter of dead animals and plants, photosynthesis, etc. The answer is D. fermentation
        
                    
             
        
        
        
Bears eat plants such as berries, and plants get their energy from the sun. So his energy source's energy source is sunlight, which also makes it his energy source
        
             
        
        
        
If a set of data is highly precise, it generally "indicates that the data must have a high level of accuracy" although there can be other crucial factors affecting the data as well. 
        
                    
             
        
        
        
Answer:
1,3,4
A dichotomous key uses questions or statements to help identify organisms, it also uses characteristics in it's questions ( that may be yes-no) and statements to help separate organisms from one another.
Hope this helped and plz mark as brainliest!
Explanation: