Answer:
B--Organism
Explanation:
Different levels of biological organization start from the least complex object and end at the most complex. Every object has objects preceding it that it is made up of. 
In this question, the organ system is made up of several organs. A community is made up of several populations of different people. Think about this now: what makes up a population and is made up of organ systems? The most logical answer here according to the flow is B--an organism. An organism is made up of organ systems and makes up a population, which in turn allows several populations to make up a community.
 
        
             
        
        
        
Answer:
d. cellular respiration
Explanation:
mitochondria is where cellular respiration occurs, and photosynthesis occurs in the chloroplast, so d would be the most reasonable answer.
 
        
             
        
        
        
The binary fission , is the asexual reproduction which is found in prokaryotes. In binary fission a cell divide into two daughter cell.  Amoeba is the best example of binary fission in which gentic material is divide and via mitotic division further  cell is divide into to daughter cell . So we conclude that, the result of binary fission is formation of daughter cell.
 
        
             
        
        
        
Answer:
B
Explanation:
The windward position on a mountain is the side that is bombarded with prevailing winds. These winds are forced upwards into the upper cooler atmosphere by the physical barrier of the mountain. The moisture in the winds condenses forming clouds that precipitate as rain. As the winds descend on the other side of the mountain (leeward side), they have little moisture left. Therefore, the windward side will be rich in vegetation and biodiversity  due to higher annual rainfall than the leeward side.  
 
        
                    
             
        
        
        
I believe that Cytokenesis follows Mitosis, because cytokenesis is the actual split of the cells' membranes (after telophase)! Hope this helps