Oh this is easy. 
Astronomy is the branch
        
             
        
        
        
The correct answer is option C
The original source of energy is the sun while most of the energy in the organisms is used in the form of energy. The energy from the sun is used by the green plants to make food by the process of photosynthesis and this food is used by the human beings and animals. The energy in animals and human is in the form of ATP.
 
        
                    
             
        
        
        
Answer:the phloem transports food and nutrient
Explanation:
 
        
                    
             
        
        
        
You are correct i did this before hope this helps
        
             
        
        
        
The smallest bone in the human body is the stapes bone, located in the ear.
Hope that helped you.