Answer:
Blood has three main functions: transport, protection and regulation. Blood transports the following substances: Gases, namely oxygen (O2) and carbon dioxide (CO2), between the lungs and rest of the body.
Explanation:
Answer:
if you repeat the same exercise, the body works more efficiently and burns more calories to experience different types of exercise.
Explanation:
<em>o</em><em>p</em><em>t</em><em>i</em><em>o</em><em>n</em><em> </em><em>3</em>
Answer:
The reason is because the heart requires more oxygen when exercising. Several physiological events happen to increase the blood flow and therefore oxygen flow to that muscles,including the heart.
Also the volume of blood that the heart pumps out is maintained so that the body organs receive the necessary amount of oxygen and nutrition, because if it didn't adjust the flow of blood to match activity level, you will be insufficient. Either output method will be lower than needed.
The leading cause of deaths in the united sates are heart diseases followed by cancer.
As per the latest researches about 30.2 million people in the United States suffer from heart diseases like heart attack, faulty heart valves, atherosclerosis, heart failure, hypertension, arteriosclerosis etc. And this number keeps on rising every year making it accountable for one in every four deaths caused in the country followed by cancer.
The common causes may include higher blood pressure, more cholesterol levels in the blood, obesity, smoking, alcoholism, tobacco consumption etc. Cancer is another leading cause affecting nearly 5.3 percent of the population making United States one of the most effected country by the disease.
To know more about Cancer refer to the link below
brainly.com/question/373177
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Answer:
B. budget cuts at the state level, force schools to do more with less money and resources.
(I'm 90% sure it's B. but it also could be A.)
