Answer:
circular folds
Explanation:
The movement of food in the body's alimentary canal <em>(the passage of food from the mouth towards the anus) </em>is aided by "peristalsis." 
"Peristalsis" is an involuntary movement of the circular and longitudinal muscles found within the digestive tract. This movement occurs in the <u>esophagus, stomach and small intestine.</u> 
Along the<em> jejunal intestinal wall</em> are the "circular folds." These folds are thick and stretches towards the "lumen." They function as speed bump control by slowing down the food passage and increasing the surface area necessary for <em>absorption</em>. After being absorbed, they will then be moved forward toward the large intestine.
So, this explains the answer.
 
        
             
        
        
        
Answer:
Climate change leads to: A warming ocean: causes thermal stress that contributes to coral bleaching and infectious disease.
Explanation:
 Sea level rise: may lead to increases in sedimentation for reefs located near land-based sources of sediment. Sedimentation runoff can lead to the smothering of coral.
 
        
             
        
        
        
Answer:
that of the bacteria found in indoor air, the most common four are: Micrococcus, Staphylococcus, Bacillus, and Pseudomonas. Micrococcus is a sphere-shaped (coccus/cocci generally means spherical), relatively harmless bacterium
 
        
                    
             
        
        
        
Thanks to their stripes, they can hide in tall grasses like the image below.
~Hope this helped :)