Your answer would be B) Phenotype.
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<span>1. The investigator should use fluorescent fingerprint powder, so that the prints will be visible on the dark surface when a special kind of light is used. 
2. A possible cause of death would be asphyxia, and is one of the most common causes of death that involve murder and violence. 
3. C. thin layer chromatography and Infrared spectrometry 
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Homeostasis:
<em>The tendency towards a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes</em>
 
        
             
        
        
        
Dependent reaction is the factor that is observed and measured
        
             
        
        
        
They can create competition within a certain niche