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.
 
        
             
        
        
        
Dominance because the tall(T) gene is dominant over the t gene so the plant is tall
        
                    
             
        
        
        
Answer:
40x, 100x, and 400x  
Explanation:
The ocular lens (closest to your eye) usually has a 10x power.
The objective lenses (closest to the object) usually have powers of 4x, 10x, and 40x.  
Combined, they give magnifications of 40x, 100x, and 400x.
 
        
             
        
        
        
The first organism in the food chain is the producer.
        
                    
             
        
        
        
Answer:
a variety of genes are involved in the control of cell growth and division. the cell replicates itself in an organized, step by step fashion known as the cell cycle. 
Explanation:
tight regulation of this process ensures a dividing cell's DNA is copied properly, any errors in the DNA are repaired and each daughter cell receives a full set of chromosomes.