Campbell Essential Biology with Physiology (6th Edition)
6th Edition
ISBN: 9780134711751
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece
Publisher: PEARSON
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Chapter 23, Problem 8SQ
Summary Introduction
To determine: The main difference between the respiratory organ of fishes and that of humans based on where they are located in the body.
Concept introduction:
The respiratory system consists of organ system that contributes to gas exchange in all living beings. The system varies on the size of organism and most importantly on the environment where it lives.
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Chapter 23 Solutions
Campbell Essential Biology with Physiology (6th Edition)
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- 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?arrow_forwardWhy do some, if not most aquatic organisms, have supplemental respiratory organs as compared to strictterrestrial animals?arrow_forwardFigure 39.7 Which of the following statements about the mammalian respiratory system is false? When we breathe in, air travels from the pharynx to the trachea. The bronchioles branch into bronchi. Alveolar ducts connect to alveolar sacs. Gas exchange between the lung and blood takes place in the alveolus.arrow_forward
- What are the respiratory organ in animal kingdom?arrow_forwardwhat are 2 factors that contribute to the efficiency of gas exchange in fish gills and why are they the most efficient respiratory organ?arrow_forward1) Electric eels are dependent on air breathing. They take up oxygen from the air that they gulp into their mouths and then blow back out. In what way are their mouths similar to gills? A) They both bring oxygen against its concentration gradient from the lower levels in the water or air to the higher levels in the blood. B) They both have large numbers of capillary beds very close to the skin. C) They both have large numbers of microvilli in their respiratory membrane to provide ATP for active transport of oxygen. D) ALL of these are correct. 2) Which of these accurately describes the buccopharyngeal pumping mechanism teleosts use to breathe? A) The volume of oral cavity is rapidly expanded with the mouth closed and the operculum open. B) The volume of the oral cavity is rapidly compressed with the mouth closed and the operculum open. C) Water from the surroundings is sucked into the gills during inspiration and blown back out during expiration. D) ALL of these are correct.arrow_forward
- If water passed over the gills of fish in the same direction as blood flow through the capillaries, how would gas exchange be affected? Select all correct choices. More oxygen would diffuse from the water into the fish's bloodstream. Less oxygen would diffuse from the water into the fish's bloodstream. More carbon dioxide would diffuse out of the fish's bloodstream into the water. Less carbon dioxide would diffuse out of the fish's bloodstream into the water. Gas exchange would remain the same, regardless of the direction of water flow.arrow_forwardIn insects, the respiratory system involves structures called tracheal tubes. How do the tracheal tubes provide oxygen to the insects body?arrow_forwardName the airways in the mammalian lung. What are their functions? How does air enter and leave the lung?arrow_forward
- What are the vital considerations in the coordinated and efficient functions of respiratory and circulatory systems of invertebrates and vertebrates?arrow_forwardWhy is the position of lung tissues within the body an advantage for terrestrial animals?arrow_forwardIf a lung were to be found in a mollusk, where would it be located (incurrent siphon/mantle cavity/ visceral mass/ excurrent siphon)?arrow_forward
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