<span>A gradual increase in atmospheric carbon dioxide would warm earths atmosphere becuse carbon dioxide is <em>a greenhouse gas</em></span>
        
             
        
        
        
True
Good luck on your questions! :D
        
             
        
        
        
Answer:
An animal that cannot make its own food.
Explanation:
A heterotroph is an animal or life source that cannot make its own food, so it depends on others things, such as plants or other animals. These types of listings can be as followed :
Carnivores
Herbivores
Omnivores
 
        
             
        
        
        
Explanation:
Cellulose, hemicellulose and lignin form structures called microfibrils, which are organized into macrofibrils that mediate structural stability in the plant cell wall.
The most important biological role of hemicelluloses is their contribution to strengthening the cell wall by interaction with cellulose and, in some walls, with lignin.
 
        
             
        
        
        
Answer:the big birds survived
Explanation: