Which of the following is the best description of the arthropod circulatory system? Question 6 options: hemocoel regulated by a three-chambered heart hemocoel regulated by a tubular or single-chambered heart pseudocoel with no vasculature and no regulation hemocoel with no vasculature and no regulation pseudocoel regulated by a two-chambered heart with vasculature

Which of the following is the best description of the arthropod circulatory system? Question 6 options: hemocoel regulated by a three-chambered heart hemocoel regulated by a tubular or single-chambered heart pseudocoel with no vasculature and no regulation hemocoel with no vasculature and no regulation pseudocoel regulated by a two-chambered heart with vasculature

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 4ACQ: Figure 16.10 Which of the following statements about the circulatory system is false? a. Blood in...

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Which of the following is false about open circulatory systems? Question 5 options: a) Movement of blood in an open circulatory system is relatively fast. b) Blood is in direct contact with all organs. c) Snails have an open circulatory system. d) There may be some blood vessels in organisms with open circulatory systems, but these tubes will not be closed on either end.
Which of the following vertebrates has a single-circuit circulatory system? Check all that apply. A tuna A lungfish A shark A snake A bird A frog
When comparing the circulatory systems of vertebrates, indicate whether the following statements are true or false. There is no mixing of oxygenated (high [O2]) and deoxygenated (low [O2]) blood in the ventricle of a fish. #apply Question 9 options: True False The circulatory system of amphibians is more efficient than that of fish because there are two circulatory loops. #analyze Question 10 options: True False The only vertebrates without a hepatic portal venous system connecting the gut to the liver are the fish. #analyze Question 11 options: True False There is no mixing of oxygenated (high [O2]) and deoxygenated (low [O2]) blood in the ventricle of a frog. #apply Question 12 options: True False
In what 2 ways is an insect's circulatory system different from a vertebrate's circulatory system? (choose 2 answers) Question 14 options: The insect has closed circulatory system. Insects have a tracheal system that delivers oxygen to it's cells directly so it is not associated with the circulatory system. Insects have a tracheal system that delivers oxygen to it's circulatory system. The insect has an open circulatory system instead of one that is closed (as in vertebrates). This means that the circulatory fluid of vertebrates moves much faster than that of insects.
Two distinctly different styles of circulatory systems have evolved among animals: open and closed. What is “open” about an open cir-culatory system? Closed systems sometimes are cited as adaptive for actively moving animals with (at least at times) high metabolic de-mand. Can you suggest possible reasons for this assertion?
Which of the following statements about vertebrate circulatory systems is not true? A. In mammals, the blood pressure in the aorta is higher than the pressure in the pulmonary artery. B. In fishes, oxygenated blood from the gills returns directly to the heart through the left atrium. C. In birds, deoxygenated blood leaves the heart through the pulmonary artery. D. In reptiles, the blood in the pulmonary artery has a lower oxygen content than the blood in the aorta. E. In amphibians, deoxygenated blood enters the heart through the right atrium.
What are some observations comparing the schematics of the fish and mammal circulatory systems? (Note: these are simplified schematics that don't show every single route for blood, so focus on the heart and the immediate inflow/outflow around the heart.)
Which of the following is a predicted outcome in a mammal heart that entirely lacks valves? A. Oxygenated and spent (deoxygenated) blood would mix. B. Cardiac output would be lower than that in a normal heart with valves. C. Heart rate would be lower compared with that in a normal heart with valves. D. A-V delay would be longer compared with that in a normal heart with valves. E. The pathways for blood flow to the body and the lungs would be reversed.
https://www.hhmi.org/biointeractive/vertebrate-circulatorium Compare and Contrast: Adult to fetal heart in mammals Fetal heart in mammals to diving heart in crocodile. To see the differences in the mammal heart as a fetus vs adult. Go to "Mammal". Click on "Heart Detail". Click "Activate". Toggle between "Fetal Heart" and "Adult Heart" to see the differences in blood flow. To see the differences in the crocodile heart on the surface vs diving. Go to "Crocodile". Click on "Heart Detail". Click "Activate". Toggle between "Surface" and "Dive" to see the differences in blood flow.
Please define the term closed circulatory system. Which animals have it, and what are its’ evolutionary advantages over open systems (why might a closed system be more efficient)?
Describe all the events (steps) that occur during a cardiac cycle for mammals (organisms with a double circulation). Please include in your description all the steps illustrated in slide #16 of the Cardiovascular System PowerPoint presentation (Lectures 5&6), as well as the opening and closing of all heart valves (refer to slide #21), and the signals arising from the SA and AV nodes (shown in slide #25). How does this cycle contribute to metabolic homeostasis for our cells, and what is the purpose of the valves?
note whether the statements below are consistent with an open or closed circulatory system. The circulating fluid flows in one direction (unidirectionally) through a circulatory loop. The circulating fluid is called hemolymph. Ostia are pores in the heart, important for circulatory function. The circulating fluid is called blood. The circulating fluid remains in vessels as it moves throughout the organism. Is the more efficient type of circulatory system.

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	hemocoel regulated by a three-chambered heart
	hemocoel regulated by a tubular or single-chambered heart
	pseudocoel with no vasculature and no regulation
	hemocoel with no vasculature and no regulation
	pseudocoel regulated by a two-chambered heart with vasculature