<span>The means is unknown. Filoviruses are known for causing hemorrhagic fever in humans. However, once a human is infected, passing the virus from person-to-person is the means by which others become infected. Most especially is the transmission through infected bodily fluids or objects that have been unsterilized and come into contact with those fluids.</span>
        
             
        
        
        
Answer:
Due to convergent evolution/ analogy
Explanation:
Analogy in evolution is the development of similar or analogous structures in distantly related species occupying the same environment. This is because the species have developed similar adaptations, over time, that enables them to survive in their environment. 
 
        
                    
             
        
        
        
Answer:
Are specialized
Explanation:
Multicellular organisms are composed of more than one cell, with groups of cells differentiating to take on specialized functions.
 
        
             
        
        
        
Answer:
List and explain the three major parts of the ecosphere?
Atmosphere
Biosphere
Hydrosphere
Explanation:
Atmosphere compose of air gas that exist in part of the ecosphere
Biosphere entails the living organism that forms a part of the ecosphere
Hydrosphere entails the part of ecosphere filled with water or liquid