A classmate claims that when an organism is scared, the brain tries to prepare the body to run away.  How does the evidence provided support this argument? (a) An increased heart rate means that the organism is paying more attention to their surroundings (b) The brain is telling the heart to beat faster, sending more oxygen to the muscles (c) The brain tries to calm the body down so that it doesn’t hyperventilate and faint (d) The brain is telling the eyes to see better, so the organism can find an escape route

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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. A classmate claims that when an organism is scared, the brain tries to prepare the body to run away.  How does the evidence provided support this argument?

(a) An increased heart rate means that the organism is paying more attention to their surroundings

(b) The brain is telling the heart to beat faster, sending more oxygen to the muscles

(c) The brain tries to calm the body down so that it doesn’t hyperventilate and faint

(d) The brain is telling the eyes to see better, so the organism can find an escape route

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