Explanation:
While exercising, the muscles need additional energy as the breathing rate and volume of each breath increases to bring more oxygen into the body and remove the carbon dioxide produced. The heart rate increases to supply the muscles with extra oxygen and remove the carbon dioxide produced.
Answer:
The answer is B) Decreases.
Explanation:
Let me know if I'm right.
When scientists read research articles in scientific journals, they apply skepticism in order to evaluate experimental procedures.
The scientists apply skepticism and evaluate experimental procedures to gain more knowledge on what things the researches are going on. In this way, a better conclusion can be made.
12 or 13 mostly 12 though
