Your endocrine system releases a chemical called adrenaline into your bloodstream. Adrenaline gives you a burst of energy and prepares your body to take action.
Oxygen is carried by the circulatory system, so your heart beats even faster to move more blood to your muscles. Your breath comes faster and faster, too, so that more oxygen can get into your body. Your body is experiencing stress.
What is the purpose of the oral presentation?
Oral presentations, also known as public speaking or simply presentations, consisting of an individual or group verbally addressing an audience on a particular topic. The aim of this is to educate, inform, entertain or present an argument.
Learn more about Oral presentations here: brainly.com/question/25314091
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