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EBK LIFE: THE SCIENCE OF BIOLOGY
11th Edition
ISBN: 8220103935432
Author: Sadava
Publisher: MAC HIGHER
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Chapter 49, Problem 2Q
Summary Introduction
To review:
The advantage gained by shunting blood away from the lungs in alligator.
Introduction:
Crocodiles and alligators are reptiles which have a four-chambered heart, similar to birds and mammals. The major difference is that crocodiles and alligators have two aortas, one from each ventricle, and the flow into these aortas is controlled by valves.
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Students have asked these similar questions
Which of the following pairs of mammalian blood vessels has blood that is the least similar in its gas content?
A) the pulmonary vein and the jugular vein
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Does blood immediately return to the heart after being oxygenated in the gills of the perch?
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- What do you think happens if you block oxygen from coming into the body and prevent carbon dioxide from leaving in the tracheal system of an insect?arrow_forwardExplain why the lungs of a frog is underdeveloped.arrow_forwardDescribe how the positive pressure ventilation system of a frog would workarrow_forward
- Describe the organs and mechanism of respiration in a bony fish?arrow_forwardWhich 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 flowarrow_forwardI) Describe the pathway of a drop of blood starting in the right atrium and ending in the left foot. Ii) list two major differences between bird lungs and the mammalian lungsarrow_forward
- Create a hand drawn flow diagram showing how gases enter, travel, and exit the body of the turtles. Use keywords and arrows only.arrow_forwardWhat is the main difference between humans and seals regarding oxygen stores? a) Humans store more O2 in the blood than seals b) Humans have less O2 per mL of hemoglobin than seals c) Seals store less O2 in the lungs than humans d) Seals store more O2 in the lungs than humansarrow_forwardX Flow of the movement of gases during respiration in mammalsarrow_forward
- Define cutaneous respiration. How does this respiration strategy affect the respiratory and circulatory systems of the frog? H textarrow_forwardWhy does inspiration effectively work to return blood to the heart? A. Inspiration lowers the pressure within the thoracic cavity. B. Inspiration raises the pressure within the thoracic cavity. C. Inspiration lowers the pressur within the vascular system of the legs. D. Inspiration raises the pressure within the vascular system of the legs.arrow_forwardSharks and bony fishes approach or achieve neutral buoyancy in different ways. Describe the methods evolved in each group. Why must a teleost fish adjust the gas volume in its swim blad-der when it swims upward or downward? How is gas volume adjusted?arrow_forward
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