Animals, they only have a cell membrane, not cell walls. 
I don't know what the answer choices were, though, but I hope this helps. 
        
                    
             
        
        
        
No. Glucose is split by glycolysis before the aerobic parts of cellular respiration, when oxygen enters the process.
Hope this helps!
        
             
        
        
        
Two Types of Coevolution
Coevolution is common among organisms participating in a mutual interaction. In mutualism, both the organisms benefit from each other. When coevolution occurs among mutually benefiting species, it is called mutualistic coevolution.
When coevolution is found among species that have negative effects on each other, it is called competitive coevolution. There are two kinds of interactions between species that can lead to competitive coevolution:
<span><span>Predation is when one organism kills and eats another organism. The prey is the species that gets eaten by the predator, which is of course the species that eats the prey.</span><span>Parasitism is when one organism benefits by damaging, but not killing, another organism. The parasitespecies benefits from this relationship, while the host species is negatively affected.</span></span>
 
        
        
        
Spirillum, genus of spiral-shaped bacteria of the family Spirillaceae, aquatic except for one species  that causes a type of rat-bite fever in man. The termspirillum<span> is used generally for any of the corkscrew-like species. sounds scary really isnt but it so cooool</span>
        
                    
             
        
        
        
C. testable and observable