Answer: Molecules present
ExplanationBlood types are determined by the presence or absence of certain antigens – substances that can trigger an immune response if they are foreign to the body
Answer:
Personality
Explanation:
I this is not the correct answer, then I will smother you in my smelly farts :)
Your heart rate might be higher on a regular basis, and your fitness levels may go up because you are training your body and it is adapting to what you are doing. you can monitor it by measuring how far you run, doing blood pressure, checking your pulse etc
