The mammalian circulatory system includes a four- chambered heart and a double-loop circulation. How do the four chambers of the heart relate to the two circulatory loops?
Q: Three-chambered hearts with incomplete septa wereonce viewed as being less adapted to circulatory…
A: Heart if found in vertebrates having backbone. It is a muscular organ that pumps blood through blood…
Q: Trace the evolution of the circulatory system through animals. From sponges up through arthropods ?
A: The circulatory system is a system that is responsible for the circulation of blood throughout the…
Q: explain why even large flatworms from centimeters to meters long can do just fine without the…
A: Flatworms belong to the phylum Platyhelminthes bearing the characteristics of being acoelomate,…
Q: How are the circulatory systems of animals classified?
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Q: In comparing the bird circulatory system to the mammal circulatory system, the bird system has
A: Birds have very efficient cardiovascular systems that permit them to meet the metabolic demands of…
Q: Compare the path of blood in animals with a one-circuitcirculatory pathway vs. a two-circuit…
A: Blood is a body fluid in other animals and humans. It supplies necessary substances to the cells,…
Q: List the major structures of all circulatory systems and thespecific functions of vertebrate…
A: The main function of the circulatory system is to efficiently circulate blood, nutrients, and…
Q: Why do the cardiac muscles cells demonstrateautorhythmicity?
A: Autorhythmicity is a property of specialized cardiac cells called pace maker cells that directly…
Q: Many objects designed by engineers have “circulatory systems” of one type or another. Describe at…
A: When engineers design object, they are seeking to increase rates of transport and therefore they…
Q: Body fluids of eumetazoan animals are separated into fluid “compartments.” Name these compartments…
A: All the animals are grouped under parazoa or eumetazoa. Parazoa includes sponges while the rest of…
Q: Describe the homeostatic functions of the vertebrate circulatory system. What function are…
A: the tendency towards maintaining a stable state that occurs inside the body in spite of changing…
Q: Define the Vertebrate circulatory pathways ?
A: Step 1 The circulatory system is a system connected with the flow of fluid in the body so as to…
Q: How is the circulatory system involved in the exchange of materials and transport of waster products…
A: Frog Circulatory System: Frogs have a closed circulatory system and are amphibians. The heart of a…
Q: How are open and closed circulatory systems similar? How are theydifferent?
A: The cardiovascular or circulatory system includes heart and blood vessels that work together to pump…
Q: How is the heart of a fish specifically adapted to its lifestyle?
A: Aquatic creature like fish have evolved to travel quickly and feel their surroundings. They've also…
Q: Compare the structure of reptilian and mammalian hearts, tracing the flow of blood through the…
A: The circulatory systems is composed of blood vessels which supplies the body nutrients and oxygen…
Q: Explain the origin and conduction of the excitation that leads to a heart contraction. Why is the…
A: Since, there are multiple questions. I have answered the first question only. If you need the…
Q: The “heart” of arthropods is located (ventrally/centrally/dorsally/sagitally)?
A: The “heart” of arthropods is located dorsally.The arthropods are known to possess an open…
Q: Describe the structure of the heart of a mammal
A: The heart is a hollow muscular organ that pumps the blood through the circulatory system by rhythmic…
Q: Describe the similarities and differences in the structure of the hearts of teleosrt fish, frogs,…
A: Heart is the organs that circulates blood throughout the body. Heart connects with blood vessels to…
Q: In what sense is a homocoel part of the circulatory system
A: Circulatory system is the network of vessels which includes arteries,veins and capillaries.In all of…
Q: Trace the flow of blood through a mammalian heart, naming the four chambers and their valves, and…
A: The heart is the most important organ in the body. It is made up of several different types of…
Q: euterostome Animals, p. 681 of our text). 4. What kind of circulatory system do herring have (be…
A: Heart is the main organ of the circulatory system. It pumps blood to all parts of the body thereby…
Q: What is the alternativemeans for transport ofsubstances in animals withouta circulatory system? Why…
A: A cell is the basic structural and functional unit of life. They are often called as "Building…
Q: Describe the actions of the frog heart chambers during a cardiac cycle.
A: The heart is a muscular pumping organ that passes deoxygenated blood to the pulmonary organ and…
Q: How is circulationcharacterized in mammals?
A: Circulation is a process by which blood along with oxygen and nutrients are supplied to every cells.…
Q: Describe the evolution of circulatory systems in animals (include at least two invertebrate examples…
A: Circulatory systems: Circulatory system consists of heart, blood vessels and connective tissues that…
Q: define the term closed circulatory system. Which animals have it, and what are its’ evolutionary…
A: A closed circulatory system consists of a network of arteries and capillaries that carry the blood…
Q: The septum completely separates the two halves of the mammalian heart. Because of this The blood…
A: The heart is a fist-sized organ that pumps the blood throughout the human body. It is the primary…
Q: Explain how the circulatory and respiratory systems are related to each other in function and…
A: The circulatory system involves organs and vessels responsible for pumping oxygenated blood across…
Q: How can you tell which side of the heart is the ventral surface (the surface closer to your chest)?…
A: We are authorized to answer only three sub-parts at a time, since you have not mentioned which part…
Q: Discuss in detail the circulatory system of Frog?
A: There is a dual circulatory system consisting of two circuits for amphibians. Blood circulates…
Q: What is the Process/Mechanism Involved in The Left Atrium of a frog
A: Introduction Frogs are amphibians and have a closed circulatory system and they have incomplete…
Q: How is the circulatorysystem of reptilescharacterized? What is thebasic difference between…
A: Reptiles are tetrapod animals, which belong to the class Reptilia. They include turtles, crocodiles,…
Q: What are the major characteristics of veins and arteries as blood vessels in an animal circulatory…
A: Heart and blood vessels make up the circulatory system. The circulatory system's important job is to…
Q: in humans, the body cavity plays no role whatsoever in circulation. Why
A: The human body consists of several cavities that accommodate several internal organs. These cavities…
Q: The terms atrium and ventricle are used to describe chambers in a wide variety of animal hearts.…
A: Heart is a muscular organ plays central role in supplying oxygen and other nutrients to all parts of…
Q: Why does heart rate and contraction force change relative to resting values when the frog's heart…
A: The heart of the frog has three chambers, one ventricle, and two atria. Because there is only a…
Q: Why, even thoough theyhave an open circulatorysystem, can flying insects likeflies beat their wings…
A: A circulatory system facilitates the transport of molecules from one part of the body to another by…
Q: of the following vertebrates has a single-circuit circulatory system? Check all that apply. A…
A: Answer of the question given below...
Q: Blood returning to the mammalian heart in a pulmonary veindrains first into the(A) left atrium.(B)…
A: The mammalian heart is a four-chambered muscular organ, which pumps blood to the body. The heart is…
Q: What do you mean by the term double circulation of blood in mammals?
A: Animal physiology is the systematic study of the supporting features, roles, and processes of…
Q: Anatomy-wise, how different is the circulatory system of the cat from that of other vertebrates?
A: The circulatory system of vertebrates is a complex network of blood vessels which transports blood…
Q: Do fishes present an openor closed circulatory system?How many chambers does afish heart have? How…
A: Introduction: Fish belongs to Pisces class of Phylum Chordata. It has a skin with scales covering…
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- Which animals lack a true circulatory system?a. cnidarians c. nematodesb. flatworms d. All of these are correct.Which function does the circulatory system share with the heart? Select one: a. Regulates blood pressure b. Directs blood flow to tissues c. Transports hormones to all areas of the body d. Exchanges nutrients and wastes with cellsHow can aquatic arthropods have larger bodies than their terrestrial counterparts? A. Terrestrial arthropods lack a circulatory system. B. The circulatory system of aquatic arthropods is more efficient. C. Gas exchange across the body surface occurs more readily in aquatic environments. D. Buoyancy of the water can support heavier exoskeletons.
- Where in the body of the Daphnia is the heart located? a. in the tail b. near midgut c. adjacent to the second antenna d. the posterior portion of the bodyHow do arteries differ from veins? a. Arteries have thicker smooth muscle layers to accommodate the changes in pressure from the heart. b. Arteries carry blood. c. Arteries have thinner smooth muscle layers and valves and move blood by the action of skeletal muscle. d. Arteries are thin walled and are used for gas exchange.How 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.
- What is the primary purpose of a bronchoscope? a. To view the inside of the bladder b. To view the inside of the lungs c. To view the inside of the stomach d. To view the inside of the heart Only answer neededWhat is the function of the foramen ovale in the fetal heart? A to increase blood flow to the lungs B to decrease the workload of the left ventricle C to help hold the valves open until the papillary muscles develop D to allow blood to bipass the lungsAmphibians 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.
- What is the function of intercalated discs? A. Unite skeletal muscles electrically and physically and enable articulation. B. Divide cardiac muscles electrically and physically and enable the heart to contract as a unit. C. Divide skeletal muscles electrically and physically and enable articulation. D. Unite cardiac muscle cells electrically and physically and enable the heart to contract as a unit.what causes low blood pressure? a. fast heart rate b. inelastic arteries c. weak valves in veins d. long sarcomeres in cardiac muscleWhat is true about Myoglobin? A. is the oxygen-carrying molecule in most invertebrates who do not have respiratory systems. B. primary purpose is to bind to carbon monoxide to prevent us from being poisoned. C. uses copper rather than iron. D. is similar to hemoglobin but has one heme and found mostly in muscle tissue. Which animal has two atria and one ventricle with no septum? A. fish B. frog C. rat D. lizard