Answer: A
Explanation: gravitation keeps moon in circular orbit.
Without gravitational force Moon would move in
Linear path.
 
        
             
        
        
        
Answer:
If you place an animal or a plant cell in a hypertonic solution, the cell shrinks, because it loses water ( water moves from a higher concentration inside the cell to a lower concentration outside ). A single animal cell ( like a red blood cell) placed in a hypotonic solution will fill up with water and then burst.
 
        
             
        
        
        
I know that the eggs have to be around certain temperatures to depict what gender the turtle will be, I don't know if that will answer your question though. Sorry!