Answer:
C
Explanation:
Lice. External parasites are those that live on the outside of the body. A few of the most common external parasites that affect beef animals 
 
        
                    
             
        
        
        
A feeding adaptation an iguana has is it’s short nose. This feature is important for feeding because it helps it eat algae off rocks.
Marine and Land iguanas have similar traits even though they aren’t the same kind of iguana because, most of their predators are the same. Therefore a bird or other prey would not be able to tell the difference so that’s why land and marine would both need spines on their back.
I think the camouflage is the most beneficial in land iguanas because their predators can’t spot them that easily, and it’s a quick way to blend in. I also think that the iguanas nose on marine iguanas is the most important because when they eat algae it’s easy to eat and they don’t have to change their position when feeding.
        
             
        
        
        
Its "C"Oxygen because it is used as oxidative phosphorylation
        
             
        
        
        
hope this helps to answer your question 
 
        
             
        
        
        
The correct answer is D. Animals not adapted to cold migrate to warmer regions, because suppose that the cold temperatures kill most of the plants, so if they can die why they select that place to live? The option B is not logical because this require long time to evolve this characteristic and the option C has more logic but it still not enough, because if the temperatures are colder more animals can die. I hope this help.