Answer: A. reporting results of scientific analysis.
A physical evidence, also called real evidence. It is a tangiable evidence, which can be touched, picked and collected from the scene of crime or any other place. It can be used to prove a crime has occurred. Physical evidences includes fingerprints, footprints, fibers, paint and building materials. 
A specimen sample is taken from the suspects or victims and compared with suspected samples obtained from the scene of crime. The comparitive analysis of physical evidences can be used as a scientific evidence against criminal.
 Therefore, reporting results of the scientific analysis is the task she should perform.
 
        
             
        
        
        
I’m guessing San francisco was cooler and st. louis was warmer? 
 
        
                    
             
        
        
        
Letter B is correct answer that what I am thinking
        
             
        
        
        
Answer: C
Explanation:
 For example, in trp-operon, an abundance of tryptophan. coli inhibits the expression trp-operon genes.
Trp operon is a negative repressible feedback mechanism
trpR gene is expressed continually at a low level
 
        
             
        
        
        
Answer:
The answer is; D
Archaebacteria are early life forms on earth. They utilized the process of chemosynthesis to make organic molecules from inorganic molecules and for energy. The word archae means ‘ancient’ life forms. These single-celled organisms evolved around sulfur-rich environments of the hydrothermal vents.