Predation; Predation refers to the interaction between two organisms, a predator and a prey, where there is a flow of energy from one to another. The predator kills and consumes the prey. Predation provides energy to prolong the life of the predator and promote the reproduction of the predator, to the detriment of the prey (the organisms that is being consumed.
 
        
             
        
        
        
Answer:
Yet, nerve cells in your brain, also called neurons, do not renew themselves. They do not divide at all. There are very few exceptions to this rule – only two special places in the brain can give birth to new neurons.
Explanation:
 
        
             
        
        
        
<span>Tight junctions, at the site of a tight junction, cells are held tightly against each other by many individual groups of tight junction proteins called claudins, each of which interacts with a partner group on the opposite cell membrane. For example, the tight junctions between the epithelial cells lining your bladder prevent urine from leaking out into the extracellular space.</span>
        
             
        
        
        
I believe it’s the lithosphere