| 41. | The pores are perforations in the endoskeleton through which podia for gas exchange project from the body.
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| 42. | Severe botulism leads to reduced movement of the muscles of respiration, and hence problems with gas exchange.
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| 43. | Lack of surfactant reduces the surface area available for effective gas exchange causing lung collapse if severe.
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| 44. | The young mouse's skin is hairless and rich in blood, providing a convenient means for gas exchange.
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| 45. | These carry out photosynthesis and may help to conserve moisture by partially enclosing the gas exchange surfaces.
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| 46. | Gas exchange occurs as water flows over a coral, bringing oxygen and removing gases and shedding material.
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| 47. | Variability in discontinuous gas exchange cycles is also dependent upon external CO 2 in the external environment.
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| 48. | The external gill rami are lined with filaments ( fimbriae ) to increase surface area for gas exchange.
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| 49. | The fast adsorption velocity is necessary to maintain the integrity of the gas exchange region of the lungs.
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| 50. | Plants also have respiratory systems but the directionality of gas exchange can be opposite to that in animals.
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