The correct answer is option B
The fishes that live in the shallow water along the sea floor needs a flattened shape and eyes on the dorsal side because they need to see above and have least possibility that the eyes will be required to see downwards as they lie at the sea floor.
They have tail for protection and flattened body for easy swimming.
Example: Stingray.
 
        
                    
             
        
        
        
This could be the different times you did the experiment 
        
                    
             
        
        
        
As photosynthesis is a process that requires sunlight, the rate of this process will be 0 in a room without any light.
However, even if the dark room has very little light, it may still not be enough for photosynthesis to occur. This process requires certain levels of sunlight. 
 
        
             
        
        
        
Answer: B.
Explanation: Cytokinesis is the last stage of mitosis. In cytokinesis, the cytoplasm and the membranes divide to create two separate cells. 
You can remember this because both cytokinesis and cytoplasm start with "cyto".