While your heart rate increases, your blood pressure doesn't. When you have an increased heart rate your heart is doing more beats a minute dilating your vessels to allow more blood flow. Blood pressure is measured in two ways, systolic pressure and dystolic pressure. (120/80)
        
             
        
        
        
I think the answer is C. Hope it helps
        
                    
             
        
        
        
A. homologous chromosomes
b. sex chromosomes
c. autosomes
        
             
        
        
        
The acronym CHNOPS, which stands for carbon,hydrogen<span>, </span>nitrogen<span>, </span>oxygen<span>, phosphorus, sulfur, represents the six most important chemical elements whose covalent combinations make up most biological molecules on Earth. Sulfur is used in the amino acids cysteine and methionine.</span>