Answer:
The virus lacks strcutures to replicate genetic material.
Explanation:
They can replicate it, but don't have structures to do it without the help of a cell. They USE the cell to replicate it but cannot do it themself.
Virus lacks genetic matrial? It has DNA.
Protective outer shell? Ptotection has nothing to do with it.
Movement? They cannot duplicate without cells.
 
        
             
        
        
        
Answer:
d.high total fertility rate
 
        
             
        
        
        
Explanation:
Proglottids are segments in cestodes that contain bot the male and female reproductive organs. These segments go ahead to make eggs and then dettach form the worm. They are excreted and become agents of infection on the next hoist. Proglittids formed near the neck of the worm are immature while those at the tail end are literally bags of mature eggs. 
The scolex is the head of the worm that is attached to the host. It is also the part that ‘sucks’ nutrients from the host. It has hooks that it uses to anchor itself in the host. In some species, rather than hooks, there are suction-cups that use suction for anchorage. 
Learn More:
For more on cestodes check out;
brainly.com/question/14565928
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The two types of crust are oceanic and continental, the lithosphere is composed of earth's crust and upper most mantle