Answer:
option A is correct 
Explanation:
when atoms in the solid state are heated they gain energy and start vibration due to which  solid molecule lose their rigidity and are converted into liquid by the gain of energy
 
        
             
        
        
        
Answer:
digestion
Explanation:
breaking down of food particles into smaller substance is known as digestion.
 
        
             
        
        
        
Answer:
PROTEINS!
Explanation:
Amino acids, often referred to as the building blocks of proteins, are compounds that play many critical roles in your body. They're needed for vital processes like the building of proteins and synthesis of hormones and neurotransmitters.
 
        
                    
             
        
        
        
The answer is A, as bears don’t eat deer, but they both eat plants.
Heterotrophs are animals.
Autotrophs are plants.
Hope this helps!