The answer is green, yellow, and orange
        
             
        
        
        
20.4      21.3 are the correct answers
        
             
        
        
        
They provide information about the pasts of the animal and plants.
        
                    
             
        
        
        
I guess the wavelength as the period becomes smaller the wavelength will decrease and frequency will increase all the rest should remain the same
Hope that helps
        
                    
             
        
        
        
In humans, the maintenance of a stable internal temperature is a direct result of Homeostasis. Homeostasis is the ability of the body to maintain an equilibrium condition within it's internal environment even when dealing external changes. Homeostasis happens in human when there is an effort exerts by the body to regulate it's internal  temperature around 98.6 degrees Fahrenheit. For example, during summer days we produce sweat for our body to cool off, and during winter we shiver for our body to produce heat.