Could be anything that can help represent the cell membrane visually
        
                    
             
        
        
        
The water cycle is also referred to as the hydrologic cycle. 
        
             
        
        
        
GENE controls traits and inheritance
        
                    
             
        
        
        
Answer:
hope it helps...
Explanation:
A covalent bond, also called a molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding.