Explanation: 
What would cause a tree to die?
There are 5 factors to which a tree eventually succumbs: death from its environment, death from harmful insects and diseases, death from a catastrophic event, death from age-related collapse (starvation) and of course, death from harvest.
I hope this helps
 
        
             
        
        
        
Answer:
There <u>warning calls</u> of other animals to scare them away from food. 
Explanation:
Honest sentry to deceptive thief.
 
        
             
        
        
        
Explanation:
Honey bees are social insects because they live together in large, well-organized family groups. A single honeybee cannot grow or survive by itself. The three distinct kinds of honeybees in a colony are queen, worker, and drone.These all bees work together for their survival.
 
        
                    
             
        
        
        
Respiration is a process of exchanging gas.
        
             
        
        
        
The main function of DNA polymerase<span> is to make </span>DNA<span> from nucleotides, the building blocks of </span>DNA<span>. There are several forms of </span>DNA polymerase<span> that play a </span>role <span>in </span>DNA replication<span> and they usually work in pairs to copy one molecule of double-stranded </span>DNA<span> into two new double stranded </span>DNA<span> molecules.]</span>