Campbell Biology in Focus; Modified Mastering Biology with Pearson eText -- ValuePack Access Card -- for Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780134433776
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman
Publisher: PEARSON
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Textbook Question
Chapter 34.1, Problem 2CC
Three-chambered hearts with incomplete septa were once viewed as being less adapted to circulatory function than mammalian hearts. What advantage of such hearts did this viewpoint overlook?
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Amphibians have three-chambered hearts, which have some limitations when compared to the four-chambered hearts of birds and mammals. Describe a disadvantage of a three-chambered heart (in comparison to a four-chambered heart), and one way in which amphibians are able to compensate for it.
Three-chambered hearts with incomplete septa wereonce viewed as being less adapted to circulatory functionthan mammalian hearts. What advantage of such heartsdid this viewpoint overlook?
In the evolution of circulatory systems, how is a 4-chambered heart advantageous compared to a 3-chambered heart?
Chapter 34 Solutions
Campbell Biology in Focus; Modified Mastering Biology with Pearson eText -- ValuePack Access Card -- for Campbell Biology in Focus (2nd Edition)
Ch. 34.1 - How is the now of hemolymph through an open...Ch. 34.1 - Three-chambered hearts with incomplete septa were...Ch. 34.1 - Prob. 3CCCh. 34.2 - Prob. 1CCCh. 34.2 - Why is it important that the AV node delay the...Ch. 34.2 - Prob. 3CCCh. 34.3 - What is the primary cause of the low velocity of...Ch. 34.3 - Prob. 2CCCh. 34.3 - Prob. 3CCCh. 34.4 - Prob. 1CC
Ch. 34.4 - Prob. 2CCCh. 34.4 - Prob. 3CCCh. 34.4 - Prob. 4CCCh. 34.5 - Why is an internal location for gas exchange...Ch. 34.5 - After a heavy rain, earthworms come to the...Ch. 34.5 - MAKE CONNECTIONS Describe similarities in the...Ch. 34.6 - Prob. 1CCCh. 34.6 - Prob. 2CCCh. 34.6 - WHAT IF? If an injury tore a small hole in the...Ch. 34.7 - What determines whether O2, or CO2, undergoes net...Ch. 34.7 - How does the Bohr shift help deliver O2, to very...Ch. 34.7 - Prob. 3CCCh. 34 - Which of the following respiratory systems is not...Ch. 34 - Blood returning to the mammalian heart in a...Ch. 34 - Pulse is a direct measure of A. blood pressure. B....Ch. 34 - Prob. 4TYUCh. 34 - One feature that amphibians and humans have in...Ch. 34 - If a molecule of CO2 released into the blood in...Ch. 34 - Prob. 7TYUCh. 34 - DRAW IT Plot blood pressure against time for one...Ch. 34 - Prob. 9TYUCh. 34 - Prob. 10TYUCh. 34 - Prob. 11TYUCh. 34 - SYNTHESIZE YOUR KNOWLEDGE The diving bell spider...
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- In the evolution of circulatory systems, how is a two-circuit circulatory system (such as that found in frogs) advantageous compared to a single-circuit circulatory system (such as that found in fishes)?arrow_forwardFish, like all invertebrates have a single circulatory systems circulatory a) explain why single circulatory system were not retained in terrestrial vertebrates b) what advantage a double circulatory system offer.arrow_forwardWhat is the type of circulatory system present in arthropods? Do these animals have heart and respiratory pigments?arrow_forward
- Hearts of mammals are described to have double pump structure. Which choice explains the functional and structural basis for the said description? A. Blood enters the atrium and pumped into ventricle. B. Blood pressure alternates between systolic and diastolic at all times. C. Atrium provide 1 pump, ventricle provides 2nd pump. D. Heart pumps blood simultaneously in systemic and pulmonary circuit.arrow_forwardInvertebrates, like Daphnia do not have a well-developed circulatory system.What features are common to animals without well-developed circulatorysystems? Discuss.arrow_forwardDescribe the evolutionary change in the pattern of heart among the vertebratesarrow_forward
- Why does the mammalian heart have 2 pumping chambers? What is the purpose?arrow_forwardThe mammalian heart can beat without input from the brain. True Or false?arrow_forwardexplain why even large flatworms from centimeters to meters long can do just fine without the complax circulatory systems seen in other large animals ?arrow_forward
- Briefly describe the differences among animal circulatory systems. What is an open system versus a closed? What are the anatomical differences among vertebrate hearts?arrow_forwardUse this labelled diagram of a human heart & major blood vessels to answer these questions. Which structure is labelled "G"? Aorta • Black arrows indicate direction of blood flow Blue structures contain deoxygenated blood Red structures contain oxygenated blood Cardiac muscle Inferior vena cava Left atrium A- Left ventricle Mitral valve Pulmonary artery Pulmonary valve D- -D Pulmonary veins Right atrium N- Right ventricle M- Superior vena cava G. Tricuspid valve K-arrow_forwardCompare the structure of reptilian and mammalian hearts, tracing the flow of blood through the double circulatory system.arrow_forward
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The Cardiovascular System: An Overview; Author: Strong Medicine;https://www.youtube.com/watch?v=Wu18mpI_62s;License: Standard youtube license