These sorts of studies can help researchers determine the relative importance of nurture and nature in determining a trait. Nature here would refer to genetics passed down to an individual from its parents, whereas nurture refers to the environment the individual is exposed to.
        
             
        
        
        
Answer:
D Microwaves
Explanation:
It has an electromagnetic radiation with wavelengths ranging from about one meter to one millimeter; with frequencies between 300 MHz (1 m) and 300 GHz (1 mm)
 
        
             
        
        
        
The answer to the fill in the blank is option B) Authentication
Passwords, tokens, and fingerprint scans are all examples of Authentication.
We use passwords, tokens and even fingerprints since they can be unique identifications and are usually seen as more secure.
In the above options, fingerprints are seen as the most secure form of authentication since everyone has unique fingerprints.
One of the earliest forms of authentication were time cards used as early as the 1950s and even unique keys and stamps used by early civilizations.
        
             
        
        
        
Carbohydrates,lipids,proteins,vitamins,,water, minerals
        
                    
             
        
        
        
Answer:
3 FACTS ABOUT PHOTOSYNTHESIS:
- The chemical equation for photosynthesis is:     carbon dioxide + water --> glucose + oxygen
- Photosynthesis the process by which green plants and some other organisms use sunlight to synthesize (get or create) nutrients from carbon dioxide and water. 
- Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.
Hope this helps!