Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 40, Problem 4RQ
Why are open circulatory systems advantageous to some animals?
- They use less
metabolic energy - They help the animal move faster
- They do not need a heart
- They help large insects develop.
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Figure 16.10 Which of the following statements about the circulatory system is false?a. Blood in the pulmonary vein is deoxygenated.b. Blood in the inferior vena cava is deoxygenated.c. Blood in the pulmonary artery is deoxygenated.d. Blood in the aorta is oxygenated.
Fill in the blank:
The first sound of a cardiac cycle occurs when the _______________________ are closing.
How do arteries differ from veins?
Arteries have thicker smooth muscle layers to accommodate the changes in pressure from the heart.
Arteries carry blood.
Arteries have thinner smooth muscle layers and valves and move blood by the action of skeletal muscle.
Arteries are thin walled and are used for gas exchange.
Arteries have direct connections to capillaries whereas veins do not.
Chapter 40 Solutions
Biology 2e
Ch. 40 - Figure 40.10 Which of the following statements...Ch. 40 - Figure 40.11 Which of the following statements...Ch. 40 - Figure 40.17 Varicose veins are veins that become...Ch. 40 - Why are open circulatory systems advantageous to...Ch. 40 - Some animals use diffusion instead of a...Ch. 40 - Blood flow that is directed through the lungs and...Ch. 40 - White blood cells: can be classified as...Ch. 40 - Platelet plug formation occurs at which point?...Ch. 40 - In humans, the plasma comprises what percentage of...Ch. 40 - The red blood cells of birds differ from mammalian...
Ch. 40 - The heart's internal pacemaker beats by: an...Ch. 40 - During the systolic phase of the cardiac cycle,...Ch. 40 - Card io myocytes are similar to skeletal muscle...Ch. 40 - How do arteries differ from veins? Arteries have...Ch. 40 - High blood pressure would be a result of...Ch. 40 - Describe a closed circulatory systemCh. 40 - Describe systemic circulationCh. 40 - IS. Describe the cause of different blood type...Ch. 40 - List some of the functions of blood in the body.Ch. 40 - How does the lymphatic system work with blood...Ch. 40 - Describe the cardiac cycleCh. 40 - What happens in capillaries?Ch. 40 - How does blood pressure change during heavy...
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- Figure 40.10 Which of the following statements about the circulatory system is false? Blood in the pulmonary vein is deoxygenated. Blood in the inferior vena cava is deoxygenated. Blood in the pulmonary artery is deoxygenated. Blood in the aorta is oxygenated.arrow_forwardSome animals use diffusion instead of a circulatory system. Examples include:: birds and jellyfish flatworms and arthropods mollusks and jellyfish none of the abovearrow_forwardBlood flow that is directed through the lungs and back to the heart is called _____________. unidirectional circulation gill circulation pulmonary circulation pulmocutaneous circulationarrow_forward
- How do arteries differ from veins? a. Arteries have thicker wall layers to accommodate the changes in pressure from the baa b. Arteries carry blood. c. Arteries have thinner wall layers and valves and move blood by the action of skeletal muscla d. Arteries are thin wafted and are used for gas exchange.arrow_forwardWhat is the purpose of the second aorta in alligators and crocodiles? What would happen if they simply shut off the pulmonary artery without having the left aorta? Choos the best answer the left aorta helps increase the blood supply to their digestive system All vertebrates have two aortas, only the left aorta is usually called the pulmonary vein The left aorta ensures uninterrupted circulation when the pulmonary artery is closedarrow_forwardAnimals with open circulatory systems utilize a fluid called_______ that serves the function of both blood and_______ fluid. This fluid is passed among chambers in the body that are collectively calledthe_________ .arrow_forward
- The three major parts of the circulatory system are the heart, the blood vessels, and the blood. The heart is an organ made up of specialized cells. Which of these functions can the heart perform that individual heart cells cannot? using energy pumping blood growing removing wastearrow_forwardMost humans are less than 2 meters tall. However, imagine if a human was 9 meters (almost 30 feet) tall. This would create some challenges that would require modifications to their cardiovascular system. Using your knowledge of normal human cardiovascular function, describe two ways that you could modify the cardiovascular system of a 9-meter human to accommodate their immense height (hint: think about things like gravity and blood pressure).arrow_forwardHow do arteries differ from veins?a. Arteries have thicker wall layers to accommodate the changes in pressure from the heart.b. Arteries carry blood.c. Arteries have thinner wall layers and valves and move blood by the action of skeletal muscle.d. Arteries are thin walled and are used for gas exchange.arrow_forward
- 1. Discuss Circulatory System. 2. What is heart? 3. Discuss blood 4. discuss blood vesselsarrow_forwardWhich statement below best explains why valves are necessary in the veins but not in the arteries? Venous valves prevent the backflow of blood into the ventricles. Blood flows in both directions through the arteries, but in the veins blood must flow in only one direction. Valves are found in arteries, not in veins. Blood in the arteries is moved forward by the pumping of the heart, but the veins feel very little of this forward push.arrow_forwardA team of geologists just spent several weeks installing equipment on Mt. Rainier at an elevation of 10,000 feet. What TWO things would occur in their circulatory system? Group of answer choices Blood would be less viscous Decreased secretion of EPO from the kidney Increased production of RBCs Decreased production of RBCs Increased secretion of EPO from the kidneyarrow_forward
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