The beaks are different  depending on the food available on the island. 
 
        
             
        
        
        
The answer to your question is B.Chromatin
        
                    
             
        
        
        
Answer:
atmospheric humidity.
Explanation:
 used to measure the amount of water vapor in air, in soil, or in confined spaces. Humidity measurement instruments usually rely on measurements of some other quantities such as temperature, pressure, mass, a mechanical or electrical change in a substance as moisture is absorbed. 
 
        
             
        
        
        
Life cycle describes a plant that reprodueces asexually and sexually.
        
             
        
        
        
Answer:
Cellular respiration involves many reactions in which electrons are passed from one molecule to another. Reactions involving electron transfers are known as oxidation-reduction reactions (or redox reactions).