Answer:
B 
(The result of DNA replication is two DNA molecules consisting of one new and one old chain of nucleotides. This is why DNA replication is described as semi-conservative, half of the chain is part of the original DNA molecule, half is brand new.)
 
        
             
        
        
        
The correct answer is (B)  chemosynthesis and marine snow  are the two ways that organisms on the bottom of  deep sea food chains acquire energy.
What is the meaning of chemosynthesis and marine show?
Chemosynthesis is the utilization of energy supplied by inorganic chemical processes to make food in bacteria and other organisms. To generate a sugar, all chemosynthetic organisms require energy provided by chemical processes, although various species employ different methods.
Marine snow is a shower of biological particles that falls from the upper ocean to the deep sea.   Marine snow refers to biological material that descends from higher in the water column. Some flakes fall for several weeks before reaching the ocean floor.
Learn more about chemosynthesis and marine snow refer:
brainly.com/question/4821668
#SPJ4
 
        
             
        
        
        
Normal sex cells will have 23 chromosomes
 
        
             
        
        
        
Answer:
can you do another post zooming it in
Explanation:
 
        
             
        
        
        
Here is an image of the hun age body system