All vertebrates breathe with either gills or lungs. Which is a property of gills only- O A. Gases exchange across moist, selectively-permeable membranes. B. Air collects in tiny sacs called alveoli. C. Water collects in tiny sacs called alveoli. D. Gases exchange across membranes that separate blood and water.

All vertebrates breathe with either gills or lungs. Which is a property of gills only- O A. Gases exchange across moist, selectively-permeable membranes. B. Air collects in tiny sacs called alveoli. C. Water collects in tiny sacs called alveoli. D. Gases exchange across membranes that separate blood and water.

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter16: The Body's System

Section: Chapter Questions

Problem 3ACQ: Figure 16.9 Which of the following statements about the human respiratory system is false? a. When...

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Which of the following is a true statement? A. The concentration of oxygen in water is greater than that in air. B. In animals with gills, ventilation helps to reduce the thickness of the boundary layer. C. Countercurrent flow at the gas-exchange surface results in the diffusion gradient across surface. D. Mammalian lungs requires the diaphragm because the lungs are relatively stiff and filled with parabronchi.
Which of the following is NOT a feature of a gas-exchange organ in animals? A. low surface area for gas exchange B. moist C. thin, delicate structure D. extensive blood flow
Respiratory organs of invertebrates and vertebrates are similar in that a. they use negative pressure breathing. b. they take advantage of countercurrent flow systems. c. they increase the surface area available for diffusion. d. the air flows through the organ in one direction.
There are advantages and disadvantages to using wateror air as the respiratory medium from which an animal takesin oxygen. Which statement below is false?a. Aquatic animals do not have to worry about keepingtheir respiratory surfaces moist.b. Air has a higher concentration of oxygen than waterand varies mostly with altitude only.c. Air has a constant concentration of 21 percent andwater has a constant concentration of 6 percent.d. For terrestrial animals, air is easier to move overrespiratory surfaces because it is less dense than water.
Marine mammals are able to hold their breath for extended periods underwater because a. unlike humans, they don’t hypoventilate. b. partial pressure of carbon dioxide does not increase underwater. c. myoglobin in muscle tissue provides an oxygen reserve. d. the brains of marine mammals do not have receptors that respond to impulses initiated in the aortic and carotid bodies.
Describe structural and functional differences between gills and lungs (ie. know the anatomy of lungs and gills). Why are birds’ lungs more efficient at removing O2 from the air compared with mammalian lungs?
According to the Fick equation, the fish gill is an effective gas exchange surface because... A. It has a high blood-to-water diffusion distance B. The total surface area of the lamellae is very large C. The scaphognathite maintains a constant flow of water across the gill D. The gill tissue is supported by the surrounding water E. All of the above
How do most insects respire? A. through skinB. through gillsC. by lungsD. by trachea system
Insects have a tracheal system that consists of: O a. Flat plates along the side of the body. O b. Amass of air filled tubes. O c. Blood vessels running just under the skin. O d. Apair of lungs extending inside the body. O e. Gills on the legs.
In which one of the following animals is skin a respiratory organ? A. CockroachB. FrogC. sharkD. Whale
Sponges and cnidarians have no lungs or gills. How do they exchange gases with the environment? Are humans better off having lungs? If so, how?
O The toxin causes inappropriate firing of neurons leading to periods of rapid twitching that infected individuals experience as surnmation leading to tetanus. QUESTION 6 Mammalian lungs are very different in structure compared to amphibian lungs. The lungs of mammals have highly complex branching patterns of airways. The lungs of amphibians are simpler and more sac-like. Over all, the lungs of mammals are capable of much greater rates of gas exchange compared to amphibians. Why is this? O The more complex structure provides more surface area across which gas exchange can occur. O A complex structure means that gases have more contact time with gases compared to a simpler structure. O Mammalian lungs are usually much bigger relative to their bodies compared to amphibian lungs. O The respiratory membranes of mammals are able to diffuse gases across them much faster than amphibians. QUESTION 7 Click Save and Submit to sve and submit. Click Save AL Answers to save all answers. P Type here…