Answer:
The concentration of a substance is the quantity of solute present in a given quantity of solution. 
 
        
             
        
        
        
Answer:
these statements are true 
B) Insertions or deletions of single base-pairs within a protein coding sequence probably change the amino acid sequence
D) Missense mutations always change the amino acid sequence encoded by a gene
E) Nucleotide substitutions outside of the coding sequence can affect the expression of a gene.
Explanation:
B) insertion or deletion of nucleotide in coding region of DNA can change the amino acid sequence encoded. 
D) missense mutation means that the change in nucleotide sequence resulting in change in amino acid sequence encoded by gene. 
E) A mutation may alter the promoter of a gene, thereby affecting the rate of transcription.
 
        
             
        
        
        
The answer is; C
Fossil fuels are the remains of an organism  that lived in the past and have been preserved  or their impression has been preserved. Fossils are studied to identify the difference (genetic and phenotypic) between past and future related organism  and are carbon dated to determine the time in which the organisms existed. The study of fossils is called paleontology. 
 
        
                    
             
        
        
        
Answer: Medical science is a very interesting feild in science, there is many different ways someone could go with this. For example there is suddies in small organisms like viruses and there is also anatomy. Veterinary scientists need to have a strong interest and skills in science and research. A interesting position to take on being in health science could be medicine because it connects many of the smaller feilds in medical sciences. Medicine is a great area to study because it can only improve and in the world people live in these days it is really important to earth. Medical sciences is a great subject to study for many reasons.
 
        
             
        
        
        
Explanation:
In medicine, genetic engineering has been used to mass-produce insulin, human growth hormones, follistim (for treating infertility). May be engineering helps us to increase human power potential