These are best described as the members of the milk and milk products. 
Dairy products or milk products are a type of food produced from or containing the milk of mammals, especially cattle, water buffaloes, goats, sheep, camels, and humans. Dairy products include food items such as yogurt, cheese, and butter.
        
                    
             
        
        
        
Answer:
protons..................
 
        
                    
             
        
        
        
The answer to your question is D. Heat Transfer
        
                    
             
        
        
        
Answer:
The correct answer is ribosomes
Explanation:
Bacteria is a prokaryote which means that it does not have a nucleus and other membrane-bound organelles which are present in all eukaryotic cell-like plant cell and animal cell. All three cells have some common structures like cytoplasm and cell membrane.  
Apart from the cell membrane and cytoplasm ribosomes are the structure which is present plant, animal, and bacterial cell. Ribosomes are present in all these cells because it helps in the translation process to make protein in all there models.
In bacteria, transcription and translation are coupled because the nucleus is not present in them to separate them.
 
        
             
        
        
        
Cells Come from other living things