I think C since they share valence electrons 
 
        
             
        
        
        
Answer and Explanation:
We know that shrubs are primary producers and mountain lions are secondary or tertiary consumers. Therefore, mountain lion cannot directly feed on shrub rather need a herbivore. Therefore, to develop a food chain including mountain lion and shrub, we need to have at least one herbivore. If we add a deer between these two, the food chain willl be complete. The deer (herbivore) will eat shrub and mountain lion (carnivore) will eat deer. The food chain can be written as follows
<em>Shrub -> deer -> Mountain Lion</em>
 
        
             
        
        
        
Answer:
Reproduction.
Explanation:
At the cellular level indicate that the living organisms are made up of the smallest building blocks called cell. It refer to unicellular organisms i.e organism with one cell.
At the cellular level, membranes; for the whole organism, the skin is Reproduction because a single parent cell divides into two cells (offsprings), two divides into four cells and so on. It is called cell division and cell reproduction because a single cell skin divides to produce many cells.
 
        
             
        
        
        
The correct answer is an asexual reproduction. The process of asexual production is the process in which produces offspring that are better and is able to cope with changes in the environment. The offspring will only inherit the parent's genes, however, not the fusion of the gametes.