Answer: the last ones wrong because to have lots of biodiversity you need different types of plants or organisms
A tundra has little to no trees 
The habitat one is correct 
Explanation:
 
        
             
        
        
        
Answer:
No, it did not rain today in Texas.
 
        
                    
             
        
        
        
An atom that gains a negative electron, it becomes a negative ion. If it loses an electron it becomes a positive ion. Some atoms lose electrons and become positive ions. Others gain electrons and become negative ions.
 
        
                    
             
        
        
        
Answer:
they will add.
Explanation:
When a cell has energy available it can store small amounts of energy by adding a phosphate group to ADP molecules producing ATP molecules. The energy stored in ATP is released when ATP is converted to ADP and a phosphate group.