Answer:
all things are made of atoms
Explanation:
atoms are the building blocks of life you are made of atoms.
 
        
                    
             
        
        
        
Embryology provides evidence for evolution because during their development, many organisms look similar, suggesting that very different organisms may have a common ancestor.
        
             
        
        
        
Answer:
What is the problem... nothing is listed??
Explanation:
 
        
                    
             
        
        
        
Answer:
Metabolism refers to all the chemical reactions in the body, including those that use oxygen and create carbon dioxide. Oxygen and carbon dioxide, therefore, are involved in both respiration and metabolism. Metabolic reactions are sometimes referred to as cellular respiration, which can cause confusion.
 
        
                    
             
        
        
        
Answer:
Our water resources face a host of serious threats, all of which are caused primarily by human activity. They include sedimentation, pollution, climate change, deforestation, landscape changes, and urban growth.