Answer:
Purposes that work to maintain homeostasis include the regulation of temperature, maintaining healthy blood pressure, maintaining calcium levels, regulating water levels, defending against viruses and bacteria.
Explanation:
 
        
             
        
        
        
Answer:
c. the gravitational forces due to the sun and the moon cancel each other's effect
Explanation:
The two diagrams represent Neap tides. Neap tides occur when the Sun, the Moon and the Earth are aligned at right angles. Moderate tides are formed because the bulge due to gravitational pull of the Sun cancels the bulge due to moon. The difference between the high tides and the low tides is the smallest.
 
        
             
        
        
        
Idk sorry lol lol lol lol
        
             
        
        
        
Sodium carbonate is a basic salt because it is a salt derived from a weak acid and strong base.
        
             
        
        
        
Vascular systems are important to transport materials throughout the organism.