Answer:
Soil can become waterlogged. The water can cut off the air supply to the roots and to the organisms that live in the soil. If the roots do not receive enough oxygen, the plants will die because they rely on oxygen to complete photosynthesis. 
Explanation:
 
        
                    
             
        
        
        
Answer:
Knew about zebra element, thought there were no separable stipe cis-elements
Applied stubbs to a larger domain, upstream and downstream
Found separate stripe elements using same method
 
        
             
        
        
        
Answer: a. Haploid spores are released to form zygotes, which grow into gametophytes.
A fern has two different stages of the life cycle; the sporophyte and gametophyte. In the sporophyte, spores are released. After this life cycle comes the gametophyte or the sexual phase,  <span>haploid spores are released to form zygotes, which grow into gametophytes. </span>
 
        
                    
             
        
        
        
The aquifer must be permeable and porous to allow the water to flow through.
        
             
        
        
        
True 
Because the energy to drive ATP synthesis in mitochondria ultimately derives from the oxidative breakdown of food molecules, the phosphorylation of ADP to form ATP that is driven by electron transport in the mitochondrion