Answer:
Flying debris could harm a population of bison
 
        
             
        
        
        
Pro cells have cell wall but eukar don’t
        
                    
             
        
        
        
The correct answer is: stratosphere.
This is because their temperatures are rising instead of decreasing.
There are 4 primary layers of the atmosphere on Earth:  
Troposphere (6-20km), the layer that we live in, where the weather occurs. Only nitrogen and oxygen present.
Stratosphere  (20-50 km), where the airplanes fly, contains the ozone layer, which absorbs harmful radiation from the sun.
Mesosphere (50-85 km), the coldest region of Earth’s atmosphere (-100 C), protective layer
Thermosphere (80-690), the hottest (1500 C) and the thickest layer which consists of the ionosphere and the exosphere.
 
        
             
        
        
        
The answer to this question is letter C. <span>The organism evolved during identification.
</span>A scientist has correctly gone through all the possible steps in a dichotomous key, but has not identified an insect. He was not able to identify the insect because t<span>he organism evolved during identification. 
</span>
Choices to this question are:
A) The scientist must have made a mistake. 
B) The insect might be an unknown variation or a new species. 
C) The organism evolved during identification. 
D) The dichotomous key had to many questions.