I believe the correct answer is C. Nektons include bony fish and squid.
        
             
        
        
        
Cell theory is the historic scientific theory, now universally accepted, that living organisms are made up of cells, that they are the basic structural/organizational unit of all organisms, and that all cells come from pre-existing cells.
(Hope this helps!!)
        
             
        
        
        
Answer:
When a new and aggressive species is introduced into an ecosystem, it may not have any natural predators or controls. It can breed and spread quickly, taking over an area. Invasive species can change the food web in an ecosystem by destroying or replacing native food sources.
Explanation:
I majored in Biology
 
        
             
        
        
        
That their ancestors were related
        
             
        
        
        
The hormone signal will be transduced through the cytoplasm of the target cell.