Double-loop circulatory systems are found in adult amphibians, reptiles, birds, and mammals. another? A. the number and organization of heart chambers, or partitions within the chambers B. the presence or absence of capillary beds in the lungs C. the presence or absence of sinuses, where blood pools and collects O D. the gases that the blood carries to and from the lungs

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

Discuss in detail the circulatory system of Frog?

Which of the following animals are the only vertebrates in which blood flows directly from respiratory organs to body tissues without first returning to the heart? fishes birds mammals amphibians reptiles

Explain why the evolution of the four-chambered heart was critical for the development of an endothermic lifestyle – the generation of internal heat – in birds and mammals.

Assume that a human heart functions similarly to a frog heart. If a person is experiencing a fever, what would we expect to happen to that person's heart rate?

What are the pros and cons of closed and open circulatorysystems? Consider not only the type of information in Table 25.2

Mammals and birds evolved from different reptilian lineages (therapsid reptiles and saurischian dinosaurs, respectively). Most reptilian hearts have three chambers (2 atria and 1 ventricle), yet the heart of both mammals and birds have four chambers. Explain how these two groups ended up with similar structures. Explain the evolutionary advantage of a four-chambered heart.

In insects, as in some other animals we have seen, the hemocoel is primarily responsible for: providing a place for food storage retracting the gubernaculum and the pharynx O coeling the hemo replacing the intestinal system with increased surface area holding and circulating body fluids protecting the anterior ganglia

How do essential nutrients and waste materials move through the Circulatory System?