Answer:
Most biomolecules are organic compounds, and just four elements, oxygen, carbon, hydrogen, and nitrogen make up 96% of the human body's mass. But many other elements, such as the various biometals, are also present in small amounts.
 
        
                    
             
        
        
        
Answer: 
The calcium carbonate is negatively impacted by increasing CO2 levels and decreasing pH in seawater
        
             
        
        
        
Is this a bio quest , I don’t think so ?!
        
                    
             
        
        
        
Answer:The wall of the aorta is thicker than that of the inferior venacava; this is because the aorta is the artery that carries blood from the heart from the left ventricle to the whole body (except the lungs), while the superior and inferior venacava are the veins that carry blood from the body to the right atrium. hope this helps !:)
Explanation: