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Which organisms use negative pressure to move air into the lungs?


A) ducks
B) iguanas
C) humans
D) mice
E) All of these use negative pressure to move air into their lungs.

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E

Gas exchange takes place by the physical process of diffusion.Use the diagram to describe where diffusion is occurring and what gases are diffusing. Gas exchange takes place by the physical process of diffusion.Use the diagram to describe where diffusion is occurring and what gases are diffusing.   Identify and describe what type of respiration involves the lungs (A)and what type involves the tissue fluids (B). A: ________ Respiration B: ________ Respiration Describe what is occurring,in terms of gaseous exchange,at C,D,E and F. C: ________ D: ________ E: ________ F: ________ Identify and describe what type of respiration involves the lungs (A)and what type involves the tissue fluids (B). A: ________ Respiration B: ________ Respiration Describe what is occurring,in terms of gaseous exchange,at C,D,E and F. C: ________ D: ________ E: ________ F: ________

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A: External respiration is the gas excha...

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Which features are required for efficient external respiration to take place?


A) The gas exchange region must be moist,thin and have a large surface area.
B) The gas exchange region must be dry,thin and have a large surface area.
C) The gases being exchanged must be present in a low concentration in order for diffusion to occur.
D) Gas exchange can only occur at a temperature lower than the body temperature of the organism.
E) The gas exchange needs to occur in an aquatic environment in order to be efficient.

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Which of the following disorder is not associated with the lower respiratory tract?


A) asthma
B) pneumonia
C) sinus infection
D) pulmonary tuberculosis
E) emphysema

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A disease in which the alveoli are distended and their walls damaged so that surface areas for gas exchange is reduced is


A) bronchitis.
B) emphysema.
C) pulmonary tuberculosis.
D) pneumonia.

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Oxygen-poor blood becomes oxygen-rich blood in the capillary beds of the


A) trachea.
B) bronchi.
C) bronchioles.
D) alveoli.
E) larynx.

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D

The respiratory center is directly sensitive to the levels of H+.Could one correctly say that CO2 levels control the breathing rate? Explain your answer.

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Answers may vary.Although the respirator...

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The grasshopper is a terrestrial animal that uses its ________ in respiration.


A) parapodia
B) tracheae
C) body surface
D) gills
E) lungs

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Gills are used in respiration by all of the following aquatic animals EXCEPT


A) clams.
B) fishes.
C) crabs.
D) polychaete worms.

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D

Common colds are upper respiratory tract infections.Why are vaccinations against the common cold not practical?


A) There are so many different strains of viruses that cause colds it would be impossible to develop a vaccine against all of them.
B) Vaccines are very costly to develop.
C) Vaccines would not work against the common cold because it is caused by a bacterial infection.
D) Colds are caused by viruses that cannot be prevented by vaccinations.
E) Vaccinations do not work in the upper respiratory tract.

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Identify the labeled structures of the respiratory system in the diagram. Identify the labeled structures of the respiratory system in the diagram.   A: ________ B: ________ C: ________ D: ________ E: ________ F: ________ G.________ H: ________ I: ________ A: ________ B: ________ C: ________ D: ________ E: ________ F: ________ G.________ H: ________ I: ________

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A: nasal cavity B: nostril C: ...

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The earthworm is a terrestrial animal that uses its ________ in respiration.


A) parapodia and body surface
B) tracheoles
C) body surface
D) gills
E) lungs

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Disorders of the upper respiratory tract consist of all of the following EXCEPT for


A) a runny nose.
B) pharyngitis.
C) the common cold.
D) asthma.
E) strep throat.

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Animals must continually acquire oxygen and release carbon dioxide because they do not have a storage area for gases.

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Which statement is NOT true about the human respiratory system?


A) The glottis is closed by the forward movement of the soft palate during swallowing.
B) The glottis is the passageway through the larynx by which air enters the trachea.
C) Food and air both enter the pharynx,presenting a potential danger to respiration.
D) Air reaching the lungs has been warmed to body temperature by passage through the nose and upper respiratory passageways.
E) Cilia and hairs in the nose help to filter out foreign materials in the air.

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Which lower respiratory tract disorder can be cured through the use of antibiotics that are effective against bacterial infections?


A) Pneumonia
B) Asthma
C) Strep throat
D) Emphysema

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When nerve impulses pass to the diaphragm,the diaphragm relaxes and exhalation occurs.

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When trying to stimulate breathing,it is better to give a mixture of carbon dioxide and oxygen than only oxygen because


A) pure oxygen causes you to breathe too rapidly.
B) carbon dioxide and oxygen together exert a greater pressure than an equal amount of oxygen.
C) carbon dioxide buildup in the blood stimulates the respiratory center in the brain.
D) oxygen causes lactic acid buildup,and the change in pH prevents breathing.
E) oxygen alone could lead to spontaneous human combustion.

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With negative pressure breathing,the muscles that move the ribs and diaphragm are distant from the absorptive alveolar surfaces.What difficulty(ies) could occur if the muscles were around each alveolus and had to expand each alveolus to suck in air?


A) Muscle tissue would get in the way of absorption of gases across the air-to-capillary border.
B) Interspersed muscle tissue would take up much space and the lung-muscle volume would have to be much larger.
C) Since muscle cells only contract and relax,it would be difficult for a few cells to cause alveolar expansion.
D) Adding a third tissue to the intimate alveolar-capillary complex would increase the problems with disorders and diseases.
E) All of the choices are correct.

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Explain the correct sequence of structures that a molecule of oxygen will pass through or over as it moves from the nostrils to the alveolus.

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The correct sequence of airflo...

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