Answer:
I believe it is the plasma in our bloodstream
Explanation:
plasma holds most of the nutrients in our body and flows in our blood transporting them through our body.
The more advance the community the more complex the speciess
Nitrogen Containing Base. It can be either Adenine, Guanine, Thymine, Cytosine, Uracil
I believe <em><u>B.</u></em><em>)</em><em><u> The hormone cortisol suppresses the immune system and is produced when the body is under stress.</u></em><em> </em>is your answer.