Loose Leaf For Integrated Principles Of Zoology
18th Edition
ISBN: 9781260411140
Author: Cleveland P Hickman Jr. Emeritus, Susan L. Keen, David J Eisenhour Professor PhD, Allan Larson, Helen I'Anson Associate Professor of Biology
Publisher: McGraw-Hill Education
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Chapter 31, Problem 15RQ
Summary Introduction
To suggest: A reason due to which the given behavior would lengthen a diver’s air supply.
Introduction :It is given that the amount of time that scuba divers can spend underwater is restricted by some factors. These factors include the time needed to deplete the air supply in their tanks.
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The amount of time that scuba divers can spend underwater is lim-ited by several factors, including time required to deplete the air sup-ply in their tanks. To make their air last longer, novice divers may be instructed to breathe slowly and exhale as much as possible on each breath. Can you suggest a reason why this behavior would lengthen a diver’s air supply?
88) During expiration, the diaphragm ________________________
Group of answer choices
Contracts downward
Relaxes downward
Relaxes upward
Contracts upward
89) The exchange of gases between the blood and systemic tissues is called ________________________
Group of answer choices
Cellular Respiration
Internal Respiration
External Respiration
Metabolism
90) There are 4 phases to hemostasis.
Group of answer choices
True
False
91) Erythropoietin is released by the kidney as a result of detection high levels of oxygen in the blood.
Group of answer choices
False
True
Mountain climbers often use the expression “thin air” to describe atmospheric conditions at high elevation. For example Jon Krakauer’s book Into Thin Air is about a deadly climbing expedition to Mount Everest.
What does it mean to say the air gets “thinner” as you climb upward?
Explain the reason why the air gets “thinner” with increasing altitude.
Briefly explain why it becomes difficult to breathe in “thin” air. Your answer should include something about the human physiology of breathing and why it is more difficult when the air is "thinner."
Chapter 31 Solutions
Loose Leaf For Integrated Principles Of Zoology
Ch. 31 - Name the chief intracellular electrolytes and the...Ch. 31 - What is the fate of spent erythrocytes in the...Ch. 31 - Prob. 3RQCh. 31 - Two distinctly different styles of circulatory...Ch. 31 - Place the following in correct order to describe...Ch. 31 - Trace the flow of blood through a mammalian heart,...Ch. 31 - Explain the origin and conduction of the...Ch. 31 - Define the terms systole and diastole. Distinguish...Ch. 31 - Prob. 9RQCh. 31 - Prob. 10RQ
Ch. 31 - Prob. 11RQCh. 31 - Describe an advantage of a fishs gills for...Ch. 31 - Describe the tracheal system of insects. What is...Ch. 31 - Trace the route of inspired air in humans from the...Ch. 31 - Prob. 15RQCh. 31 - How does a frog ventilate its lungs? Contrast an...Ch. 31 - What is the role of carbon dioxide in the control...Ch. 31 - Prob. 18RQCh. 31 - Prob. 19RQCh. 31 - The ability of hemoglobin to bind oxygen decreases...Ch. 31 - At high altitudes, the partial pressure of oxygen...
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- Because flight is metabolically demanding, birds have very efficient systems that help to meet these demands. Look at the following list of characteristics and choose those that contribute to the physiological demands of flight. One-way airflow respiration Endothermy Large heart Nucleated red blood cells Slow heart rate Two-cycle lung ventilation Air sacs Separate pulmonary / systemic circulation Air capillariesarrow_forwardWhich of the following is true of the regulation of breathing in humans? Select all that apply. Check All That Apply The concentration of oxygen in the blood is the primary regulator of breathing rate. Breathing can be controlled consciously but is usually subconsciously controlled by the brain. A compound that lowers blood pH would increase respiration rate. Increased levels of blood carbon dioxide lead to an increase in bicarbonate production, which buffers the blood, making it harde oxygen to enter tissues. Respiration increases with the increased production of carbon dioxide during exercise.arrow_forwardIn amphibians, cutaneous gas exchange is particularly important, especially in some species of lungless salamanders. Draw the circulation of oxygen-rich and oxygen-poor blood during cutaneous gas exchange for a lungless salamander. Upload your image (may be hand drawn or digitally rendered).arrow_forward
- Which statement about the regulation of respiration is FALSE? Group of answer choices Respiratory centers in the medulla control the transition from inspiration to expiration. Carbon dioxide concentration is the most important chemical stimulus for regulating respiratory rate. Chemoreceptors in the walls of various arteries are sensitive to carbon dioxide levels in the blood. A group of neurons in the ventral medulla only become active when we need to breathe forcefully. Chemoreceptors may be sensitive to oxygen, carbon dioxide, and/or hydrogen ion concentration.arrow_forwardCompare and contrast positive pressure breathing and negative pressure breathing. Please give an example of an animal that performs each of these, and describe how air movement is accomplished in each of these 2 animals.arrow_forwardSome patients with severe emphysema have constant high levels of carbon dioxide because of inadequate ventilation. The central nervous system breathing center in these patients becomes insensitive to carbon dioxide and more dependent on the level of oxygen, which is low. These patients are said to have “oxygen-dependent respiratory drive". What might happen if you give such a person high levels of supplemental oxygen? Essay Toolbar navigation BIU S > > > !!!arrow_forward
- During speech the circumference of the chest wall increases and decreases as it moves air in and out of the lungs. Which statement best describes the air pressure and direction of air flow as the chest wall circumference increases? Group of answer choices A. Air pressure inside the lungs decreases, so atmospheric air is pushed into the lungs B. Air pressure inside the lungs increases, so atmospheric air is pushed into the lungs C. Air pressure inside the lungs decreases, so atmospheric air is pushed out of the lungs D. Air pressure inside the lungs increases, so atmospheric air is pushed inside the lungsarrow_forwardWhich of the following statements about oxygen transport is TRUE. Increases in temperature and decreases in pH cause myoglobin to release oxygen to improve delivery to the hemoglobin in muscles. A molecule of myoglobin has higher oxygen binding capacity than a molecule of hemoglobin. Myoglobin has a higher oxygen affinity than does hemoglobin. Fetal hemoglobin has a lower affinity for oxygen than maternal hemoglobin, which makes it better suited to extract oxygen from the maternal circulation.arrow_forwardIn a negative feedback control of respiration, a high level of carbon dioxide in the blood stimulates chemoreceptors. The chemoreceptors then send information to the medulla in the brainstem. The medulla than stimulates an increase in respiratory rate. The integrator in this system is the: Chemoreceptor Carbon dioxide O Lungs Respiratory muscles None of the abovearrow_forward
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