Flowers that are in bunches and bright in color may apply pollinators
        
             
        
        
        
Answer:
Volume
Explanation:
This is a Physics question, and that means we can definitely do some experiment with this. 
See Archimedes' law of buoyancy.
 
        
             
        
        
        
Answer:
Evolution is the gradual change in the inherited traits of a population over several generations. natural selection is a mechanism where the members of a population best suited to their environment have the best chance of surviving to pass their genes 
 
        
             
        
        
        
Before your food passes from the mouth and down your esophagus, salivary amylase, an enzyme in saliva, begins to digest the starch in your bread. That is the start of chemical digestion. ... The passage of the bolus through the esophagus to the stomach occurs by peristalsis, a series of wave-like muscle contractions.